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Finding the Fourth Proportional to 129,424.84, 194,083.49 and 45,167.02

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Solution

The fourth proportional to 129,424.84, 194,083.49 and 45,167.02 is: 67,731.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,424.84 : 194,083.49 = 45,167.02 : x
  2. Step 2: Convert to fraction form
    129,424.84/194,083.49 = 45,167.02/x
  3. Step 3: Cross multiply
    129,424.84x = 194,083.49 × 45,167.02
  4. Step 4: Simplify right side
    129,424.84x = 8,766,172,502.21
  5. Step 5: Solve for x
    x = 8,766,172,502.21/129,424.84
  6. Step 6: Final answer
    x = 67,731.76

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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.