Home / 168,042.27-231,792.39-100,008.45

Finding the Fourth Proportional to 168,042.27, 231,792.39 and 100,008.45

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Solution

The fourth proportional to 168,042.27, 231,792.39 and 100,008.45 is: 137,948.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,042.27 : 231,792.39 = 100,008.45 : x
  2. Step 2: Convert to fraction form
    168,042.27/231,792.39 = 100,008.45/x
  3. Step 3: Cross multiply
    168,042.27x = 231,792.39 × 100,008.45
  4. Step 4: Simplify right side
    168,042.27x = 23,181,197,645.70
  5. Step 5: Solve for x
    x = 23,181,197,645.70/168,042.27
  6. Step 6: Final answer
    x = 137,948.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.