Home / 125,233.31-172,839.68-77,502.04

Finding the Fourth Proportional to 125,233.31, 172,839.68 and 77,502.04

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Solution

The fourth proportional to 125,233.31, 172,839.68 and 77,502.04 is: 106,963.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,233.31 : 172,839.68 = 77,502.04 : x
  2. Step 2: Convert to fraction form
    125,233.31/172,839.68 = 77,502.04/x
  3. Step 3: Cross multiply
    125,233.31x = 172,839.68 × 77,502.04
  4. Step 4: Simplify right side
    125,233.31x = 13,395,427,792.95
  5. Step 5: Solve for x
    x = 13,395,427,792.95/125,233.31
  6. Step 6: Final answer
    x = 106,963.78

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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.