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Finding the Fourth Proportional to 125,149.01, 172,704.20 and 67,787.24

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Solution

The fourth proportional to 125,149.01, 172,704.20 and 67,787.24 is: 93,545.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,149.01 : 172,704.20 = 67,787.24 : x
  2. Step 2: Convert to fraction form
    125,149.01/172,704.20 = 67,787.24/x
  3. Step 3: Cross multiply
    125,149.01x = 172,704.20 × 67,787.24
  4. Step 4: Simplify right side
    125,149.01x = 11,707,139,851.95
  5. Step 5: Solve for x
    x = 11,707,139,851.95/125,149.01
  6. Step 6: Final answer
    x = 93,545.61

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1.5x scale

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.