Home / 172,240.38-258,325.85-108,169.90

Finding the Fourth Proportional to 172,240.38, 258,325.85 and 108,169.90

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Solution

The fourth proportional to 172,240.38, 258,325.85 and 108,169.90 is: 162,233.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,240.38 : 258,325.85 = 108,169.90 : x
  2. Step 2: Convert to fraction form
    172,240.38/258,325.85 = 108,169.90/x
  3. Step 3: Cross multiply
    172,240.38x = 258,325.85 × 108,169.90
  4. Step 4: Simplify right side
    172,240.38x = 27,943,081,361.92
  5. Step 5: Solve for x
    x = 27,943,081,361.92/172,240.38
  6. Step 6: Final answer
    x = 162,233.05

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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.