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Finding the Fourth Proportional to 172,685.52, 258,549.98 and 88,263.90

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Solution

The fourth proportional to 172,685.52, 258,549.98 and 88,263.90 is: 132,151.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,685.52 : 258,549.98 = 88,263.90 : x
  2. Step 2: Convert to fraction form
    172,685.52/258,549.98 = 88,263.90/x
  3. Step 3: Cross multiply
    172,685.52x = 258,549.98 × 88,263.90
  4. Step 4: Simplify right side
    172,685.52x = 22,820,629,138.40
  5. Step 5: Solve for x
    x = 22,820,629,138.40/172,685.52
  6. Step 6: Final answer
    x = 132,151.38

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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.