PLEASE HELP!!!

Select all that apply.

To decide if 12.5 centimeters is greater than 140 millimeters, the first step is to set up a proportion Which of the following proportions are correct?

IT'S MORE THAN 1 I KNOW THAT!!! 1 cm/ 10 mm = 12.5/ x is correct but there's another one that also is and I can't figure that out.

12.5 cm/1 cm = 140mm/x

10mm/1 cm = 140mm/x

1 cm/10 mm = 12.5 cm/x

10 mm/1 cm= x/140 mm