Finding the Fourth Proportional to 83.82, 125.50 and 67.50

Step by Step Solution

1. Step 1: Write the proportion equation
   83.82 : 125.50 = 67.50 : x
2. Step 2: Convert to fraction form
   83.82/125.50 = 67.50/x
3. Step 3: Cross multiply
   83.82x = 125.50 × 67.50
4. Step 4: Simplify right side
   83.82x = 8,471.25
5. Step 5: Solve for x
   x = 8,471.25/83.82
6. Step 6: Final answer
   x = 101.06