If 81 : y :: y : 196, find the positive value of y.
A132
B134
C126
D128
A132
B134
C126
D128
Related Questions:
If the denominator of a fraction is multiplied by 2 and the numerator is increased by 2, the fraction becomes . If instead, the numerator is multiplied by 2 and the denominator is increased by 2, it becomes What is the sum of the numerator and the denominator of the original fraction (in the lowest form) ?