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Finding the Fourth Proportional to 172,625.31, 258,834.29 and 67,493.79

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Solution

The fourth proportional to 172,625.31, 258,834.29 and 67,493.79 is: 101,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,625.31 : 258,834.29 = 67,493.79 : x
  2. Step 2: Convert to fraction form
    172,625.31/258,834.29 = 67,493.79/x
  3. Step 3: Cross multiply
    172,625.31x = 258,834.29 × 67,493.79
  4. Step 4: Simplify right side
    172,625.31x = 17,469,706,876.59
  5. Step 5: Solve for x
    x = 17,469,706,876.59/172,625.31
  6. Step 6: Final answer
    x = 101,200.15

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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.