Home / 172,355.90-258,527.16-88,115.09

Finding the Fourth Proportional to 172,355.90, 258,527.16 and 88,115.09

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Solution

The fourth proportional to 172,355.90, 258,527.16 and 88,115.09 is: 132,169.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,355.90 : 258,527.16 = 88,115.09 : x
  2. Step 2: Convert to fraction form
    172,355.90/258,527.16 = 88,115.09/x
  3. Step 3: Cross multiply
    172,355.90x = 258,527.16 × 88,115.09
  4. Step 4: Simplify right side
    172,355.90x = 22,780,142,678.21
  5. Step 5: Solve for x
    x = 22,780,142,678.21/172,355.90
  6. Step 6: Final answer
    x = 132,169.21

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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.