Home / 128,496.08-192,761.94-39,737.90

Finding the Fourth Proportional to 128,496.08, 192,761.94 and 39,737.90

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Solution

The fourth proportional to 128,496.08, 192,761.94 and 39,737.90 is: 59,612.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,496.08 : 192,761.94 = 39,737.90 : x
  2. Step 2: Convert to fraction form
    128,496.08/192,761.94 = 39,737.90/x
  3. Step 3: Cross multiply
    128,496.08x = 192,761.94 × 39,737.90
  4. Step 4: Simplify right side
    128,496.08x = 7,659,954,695.53
  5. Step 5: Solve for x
    x = 7,659,954,695.53/128,496.08
  6. Step 6: Final answer
    x = 59,612.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.