Home / 156,743.85-235,115.78-112,785.15

Finding the Fourth Proportional to 156,743.85, 235,115.78 and 112,785.15

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Solution

The fourth proportional to 156,743.85, 235,115.78 and 112,785.15 is: 169,177.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,743.85 : 235,115.78 = 112,785.15 : x
  2. Step 2: Convert to fraction form
    156,743.85/235,115.78 = 112,785.15/x
  3. Step 3: Cross multiply
    156,743.85x = 235,115.78 × 112,785.15
  4. Step 4: Simplify right side
    156,743.85x = 26,517,568,514.67
  5. Step 5: Solve for x
    x = 26,517,568,514.67/156,743.85
  6. Step 6: Final answer
    x = 169,177.73

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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.