Home / 157,609.42-236,540.11-81,729.52

Finding the Fourth Proportional to 157,609.42, 236,540.11 and 81,729.52

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Solution

The fourth proportional to 157,609.42, 236,540.11 and 81,729.52 is: 122,659.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,609.42 : 236,540.11 = 81,729.52 : x
  2. Step 2: Convert to fraction form
    157,609.42/236,540.11 = 81,729.52/x
  3. Step 3: Cross multiply
    157,609.42x = 236,540.11 × 81,729.52
  4. Step 4: Simplify right side
    157,609.42x = 19,332,309,651.05
  5. Step 5: Solve for x
    x = 19,332,309,651.05/157,609.42
  6. Step 6: Final answer
    x = 122,659.61

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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.