Home / 97.92-135.12-61.04

Finding the Fourth Proportional to 97.92, 135.12 and 61.04

Calculator

Solution

The fourth proportional to 97.92, 135.12 and 61.04 is: 84.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.92 : 135.12 = 61.04 : x
  2. Step 2: Convert to fraction form
    97.92/135.12 = 61.04/x
  3. Step 3: Cross multiply
    97.92x = 135.12 × 61.04
  4. Step 4: Simplify right side
    97.92x = 8,247.72
  5. Step 5: Solve for x
    x = 8,247.72/97.92
  6. Step 6: Final answer
    x = 84.23

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.