Home / 125,793.11-173,591.64-72,109.76

Finding the Fourth Proportional to 125,793.11, 173,591.64 and 72,109.76

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Solution

The fourth proportional to 125,793.11, 173,591.64 and 72,109.76 is: 99,509.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,793.11 : 173,591.64 = 72,109.76 : x
  2. Step 2: Convert to fraction form
    125,793.11/173,591.64 = 72,109.76/x
  3. Step 3: Cross multiply
    125,793.11x = 173,591.64 × 72,109.76
  4. Step 4: Simplify right side
    125,793.11x = 12,517,651,498.41
  5. Step 5: Solve for x
    x = 12,517,651,498.41/125,793.11
  6. Step 6: Final answer
    x = 99,509.83

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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.