Multiple use of the same calculation formula as a function for measures?

Hello,

I have a formula, which I want to use for multiple parameters. Defining the formula as a measure and using a filter for the parameters is not possible due to the data structure and an outer join. I have already tried this approach, but with a filter, I get the wrong values for the calculation. I only get the correct values, if I define the filters in separated measures for every parameter. Let's assume that the formula is
GetResult = (PARAMETER_2) / (PARAMETER_1 - PARAMETER_2)

What I have to do is:
Measure1 = (PARAMETER_2_Type1) / (PARAMETER_1_Type1 - PARAMETER_2_Type1)
Measure2 = (PARAMETER_2_Type2) / (PARAMETER_1_Type2 - PARAMETER_2_Type2)
Measure3 = (PARAMETER_2_Type3) / (PARAMETER_1_Type3 - PARAMETER_2_Type3)
etc.

Would it be possible to create a function which can be used for measures? I was thinking about defining a formula, which encapsulates the formula above into something like this: 
GetResult(PARAMETER_1_Type, PARAMETER_2)

This will not reduce the amount of measures, which I have to create, but I do not have to retype the whole formula x-times and it will reduce the risk of entering a wrong value in the formula. Is there a way to achieve this or is it only possible to copy the whole written-out formula and change the parameters?

Any hints and suggestions will be appreciated!