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Finding the Fourth Proportional to 172,279.66, 258,471.90 and 88,098.94

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Solution

The fourth proportional to 172,279.66, 258,471.90 and 88,098.94 is: 132,175.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,279.66 : 258,471.90 = 88,098.94 : x
  2. Step 2: Convert to fraction form
    172,279.66/258,471.90 = 88,098.94/x
  3. Step 3: Cross multiply
    172,279.66x = 258,471.90 × 88,098.94
  4. Step 4: Simplify right side
    172,279.66x = 22,771,100,409.79
  5. Step 5: Solve for x
    x = 22,771,100,409.79/172,279.66
  6. Step 6: Final answer
    x = 132,175.21

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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.