Home / 125,421.62-173,084.76-71,711.66

Finding the Fourth Proportional to 125,421.62, 173,084.76 and 71,711.66

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Solution

The fourth proportional to 125,421.62, 173,084.76 and 71,711.66 is: 98,963.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,421.62 : 173,084.76 = 71,711.66 : x
  2. Step 2: Convert to fraction form
    125,421.62/173,084.76 = 71,711.66/x
  3. Step 3: Cross multiply
    125,421.62x = 173,084.76 × 71,711.66
  4. Step 4: Simplify right side
    125,421.62x = 12,412,195,460.30
  5. Step 5: Solve for x
    x = 12,412,195,460.30/125,421.62
  6. Step 6: Final answer
    x = 98,963.76

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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.