If 1x = 144y then how much is 100y = ?x

0.7142857142857143=100y

 

140y/100y=7/5

1/(7/5)=0.7142857142857143

Correct METHODOLOGY, but wrong NUMBERS

144y/100y = 72/50      (NOT 140/100)

 

1 /  72/50  = .69444x