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Finding the Fourth Proportional to 172,686.52, 258,551.47 and 88,264.90

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Solution

The fourth proportional to 172,686.52, 258,551.47 and 88,264.90 is: 132,152.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,686.52 : 258,551.47 = 88,264.90 : x
  2. Step 2: Convert to fraction form
    172,686.52/258,551.47 = 88,264.90/x
  3. Step 3: Cross multiply
    172,686.52x = 258,551.47 × 88,264.90
  4. Step 4: Simplify right side
    172,686.52x = 22,821,019,644.40
  5. Step 5: Solve for x
    x = 22,821,019,644.40/172,686.52
  6. Step 6: Final answer
    x = 132,152.87

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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.