Filtering table 2 without relationship

Hi ArslanManzoor ,

One option is to use a measure to filter the second table, comparing the values of results with the selected limits from the first table. 

Within Limit = IF ( SELECTEDVALUE('Table 2'[Results]) <= SELECTEDVALUE('Table 1'[Green zone upper limit]) && SELECTEDVALUE('Table 2'[Results]) >= SELECTEDVALUE('Table 1'[Green zone lower limit]) , 1, 0)

This will give you

and

Then add a visual filter to only show the 1s

And now you have

Alternatively, you could use Power Query to create a list of allowed values (within the limits)

Add a custom column in Table 1

{[Green zone lower limit]..[Green zone upper limit]}

Which gives you a list of the range, that you could then expand and link to Table 2 on Table 2[Result]

This might be many to many but you can set the filter direction to be single 

Which would give you the same result