Home / 156,358.60-215,785.66-95,128.68

Finding the Fourth Proportional to 156,358.60, 215,785.66 and 95,128.68

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Solution

The fourth proportional to 156,358.60, 215,785.66 and 95,128.68 is: 131,284.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,358.60 : 215,785.66 = 95,128.68 : x
  2. Step 2: Convert to fraction form
    156,358.60/215,785.66 = 95,128.68/x
  3. Step 3: Cross multiply
    156,358.60x = 215,785.66 × 95,128.68
  4. Step 4: Simplify right side
    156,358.60x = 20,527,404,998.73
  5. Step 5: Solve for x
    x = 20,527,404,998.73/156,358.60
  6. Step 6: Final answer
    x = 131,284.14

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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.