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Finding the Fourth Proportional to 172,169.52, 258,281 and 87,884.04

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Solution

The fourth proportional to 172,169.52, 258,281 and 87,884.04 is: 131,839.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,169.52 : 258,281 = 87,884.04 : x
  2. Step 2: Convert to fraction form
    172,169.52/258,281 = 87,884.04/x
  3. Step 3: Cross multiply
    172,169.52x = 258,281 × 87,884.04
  4. Step 4: Simplify right side
    172,169.52x = 22,698,777,735.24
  5. Step 5: Solve for x
    x = 22,698,777,735.24/172,169.52
  6. Step 6: Final answer
    x = 131,839.70

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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.