Home / 129,092.20-193,379.10-89,693.80

Finding the Fourth Proportional to 129,092.20, 193,379.10 and 89,693.80

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Solution

The fourth proportional to 129,092.20, 193,379.10 and 89,693.80 is: 134,360.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,092.20 : 193,379.10 = 89,693.80 : x
  2. Step 2: Convert to fraction form
    129,092.20/193,379.10 = 89,693.80/x
  3. Step 3: Cross multiply
    129,092.20x = 193,379.10 × 89,693.80
  4. Step 4: Simplify right side
    129,092.20x = 17,344,906,319.58
  5. Step 5: Solve for x
    x = 17,344,906,319.58/129,092.20
  6. Step 6: Final answer
    x = 134,360.61

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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.