Home / 129,279.27-193,918.92-40,540.53

Finding the Fourth Proportional to 129,279.27, 193,918.92 and 40,540.53

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Solution

The fourth proportional to 129,279.27, 193,918.92 and 40,540.53 is: 60,810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,279.27 : 193,918.92 = 40,540.53 : x
  2. Step 2: Convert to fraction form
    129,279.27/193,918.92 = 40,540.53/x
  3. Step 3: Cross multiply
    129,279.27x = 193,918.92 × 40,540.53
  4. Step 4: Simplify right side
    129,279.27x = 7,861,575,793.83
  5. Step 5: Solve for x
    x = 7,861,575,793.83/129,279.27
  6. Step 6: Final answer
    x = 60,810.80

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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.