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Finding the Fourth Proportional to 129,496.67, 194,244.72 and 40,757.93

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Solution

The fourth proportional to 129,496.67, 194,244.72 and 40,757.93 is: 61,136.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,496.67 : 194,244.72 = 40,757.93 : x
  2. Step 2: Convert to fraction form
    129,496.67/194,244.72 = 40,757.93/x
  3. Step 3: Cross multiply
    129,496.67x = 194,244.72 × 40,757.93
  4. Step 4: Simplify right side
    129,496.67x = 7,917,011,729.41
  5. Step 5: Solve for x
    x = 7,917,011,729.41/129,496.67
  6. Step 6: Final answer
    x = 61,136.80

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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.