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Finding the Fourth Proportional to 125,379.92, 173,017.68 and 71,657.84

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Solution

The fourth proportional to 125,379.92, 173,017.68 and 71,657.84 is: 98,884.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,379.92 : 173,017.68 = 71,657.84 : x
  2. Step 2: Convert to fraction form
    125,379.92/173,017.68 = 71,657.84/x
  3. Step 3: Cross multiply
    125,379.92x = 173,017.68 × 71,657.84
  4. Step 4: Simplify right side
    125,379.92x = 12,398,073,230.61
  5. Step 5: Solve for x
    x = 12,398,073,230.61/125,379.92
  6. Step 6: Final answer
    x = 98,884.04

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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.