3. Determine the altitude of the triangle

\(ABC\) and \(PQR\) are similar triangles. If the lengths of \(AB\) and \(PQ\) are 3 \(cm\) and 16 \(cm\), respectively. The corresponding altitude of \(\triangle ABC\) is 16 \(cm\), then the corresponding altitude of \(\triangle PQR\) is 85.33387.33386.33384.333 \(cm\).