Home / 129,794.20-194,691.30-100,269.70

Finding the Fourth Proportional to 129,794.20, 194,691.30 and 100,269.70

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Solution

The fourth proportional to 129,794.20, 194,691.30 and 100,269.70 is: 150,404.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,794.20 : 194,691.30 = 100,269.70 : x
  2. Step 2: Convert to fraction form
    129,794.20/194,691.30 = 100,269.70/x
  3. Step 3: Cross multiply
    129,794.20x = 194,691.30 × 100,269.70
  4. Step 4: Simplify right side
    129,794.20x = 19,521,638,243.61
  5. Step 5: Solve for x
    x = 19,521,638,243.61/129,794.20
  6. Step 6: Final answer
    x = 150,404.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.