Home / 129,748.26-194,553.15-66,542.73

Finding the Fourth Proportional to 129,748.26, 194,553.15 and 66,542.73

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Solution

The fourth proportional to 129,748.26, 194,553.15 and 66,542.73 is: 99,778.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,748.26 : 194,553.15 = 66,542.73 : x
  2. Step 2: Convert to fraction form
    129,748.26/194,553.15 = 66,542.73/x
  3. Step 3: Cross multiply
    129,748.26x = 194,553.15 × 66,542.73
  4. Step 4: Simplify right side
    129,748.26x = 12,946,097,731.10
  5. Step 5: Solve for x
    x = 12,946,097,731.10/129,748.26
  6. Step 6: Final answer
    x = 99,778.58

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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.