Home / 125,269.38-172,872.30-67,909.68

Finding the Fourth Proportional to 125,269.38, 172,872.30 and 67,909.68

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Solution

The fourth proportional to 125,269.38, 172,872.30 and 67,909.68 is: 93,715.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,269.38 : 172,872.30 = 67,909.68 : x
  2. Step 2: Convert to fraction form
    125,269.38/172,872.30 = 67,909.68/x
  3. Step 3: Cross multiply
    125,269.38x = 172,872.30 × 67,909.68
  4. Step 4: Simplify right side
    125,269.38x = 11,739,702,573.86
  5. Step 5: Solve for x
    x = 11,739,702,573.86/125,269.38
  6. Step 6: Final answer
    x = 93,715.66

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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.