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Finding the Fourth Proportional to 125,179.58, 187,766.70 and 30,410.21

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Solution

The fourth proportional to 125,179.58, 187,766.70 and 30,410.21 is: 45,614.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,179.58 : 187,766.70 = 30,410.21 : x
  2. Step 2: Convert to fraction form
    125,179.58/187,766.70 = 30,410.21/x
  3. Step 3: Cross multiply
    125,179.58x = 187,766.70 × 30,410.21
  4. Step 4: Simplify right side
    125,179.58x = 5,710,023,839.17
  5. Step 5: Solve for x
    x = 5,710,023,839.17/125,179.58
  6. Step 6: Final answer
    x = 45,614.66

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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.