Home / 172,239.38-258,324.35-108,168.90

Finding the Fourth Proportional to 172,239.38, 258,324.35 and 108,168.90

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Solution

The fourth proportional to 172,239.38, 258,324.35 and 108,168.90 is: 162,231.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,239.38 : 258,324.35 = 108,168.90 : x
  2. Step 2: Convert to fraction form
    172,239.38/258,324.35 = 108,168.90/x
  3. Step 3: Cross multiply
    172,239.38x = 258,324.35 × 108,168.90
  4. Step 4: Simplify right side
    172,239.38x = 27,942,661,053.14
  5. Step 5: Solve for x
    x = 27,942,661,053.14/172,239.38
  6. Step 6: Final answer
    x = 162,231.55

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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.