Home / 138,785.27-191,424.87-95,781.15

Finding the Fourth Proportional to 138,785.27, 191,424.87 and 95,781.15

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Solution

The fourth proportional to 138,785.27, 191,424.87 and 95,781.15 is: 132,109.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,785.27 : 191,424.87 = 95,781.15 : x
  2. Step 2: Convert to fraction form
    138,785.27/191,424.87 = 95,781.15/x
  3. Step 3: Cross multiply
    138,785.27x = 191,424.87 × 95,781.15
  4. Step 4: Simplify right side
    138,785.27x = 18,334,894,187.20
  5. Step 5: Solve for x
    x = 18,334,894,187.20/138,785.27
  6. Step 6: Final answer
    x = 132,109.80

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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.