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Finding the Fourth Proportional to 125,607.87, 173,348.51 and 71,909.73

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Solution

The fourth proportional to 125,607.87, 173,348.51 and 71,909.73 is: 99,240.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,607.87 : 173,348.51 = 71,909.73 : x
  2. Step 2: Convert to fraction form
    125,607.87/173,348.51 = 71,909.73/x
  3. Step 3: Cross multiply
    125,607.87x = 173,348.51 × 71,909.73
  4. Step 4: Simplify right side
    125,607.87x = 12,465,444,190.45
  5. Step 5: Solve for x
    x = 12,465,444,190.45/125,607.87
  6. Step 6: Final answer
    x = 99,240.95

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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.