Answer :
Let the perimeters be P1 (for the smaller one ) and (P2 for thr larger one), we have,
[tex]\frac{P1}{P2}=\frac{3}{4}[/tex]Also we have P2 = 175,
[tex]\begin{gathered} \frac{P1}{175}=\frac{3}{4} \\ P1=\frac{175\times3}{4}=131.25\text{ cm} \end{gathered}[/tex]The answer is 131.25 cm.