Home / 156,508.91-234,736.09-72,261.89

Finding the Fourth Proportional to 156,508.91, 234,736.09 and 72,261.89

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Solution

The fourth proportional to 156,508.91, 234,736.09 and 72,261.89 is: 108,380.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,508.91 : 234,736.09 = 72,261.89 : x
  2. Step 2: Convert to fraction form
    156,508.91/234,736.09 = 72,261.89/x
  3. Step 3: Cross multiply
    156,508.91x = 234,736.09 × 72,261.89
  4. Step 4: Simplify right side
    156,508.91x = 16,962,473,514.61
  5. Step 5: Solve for x
    x = 16,962,473,514.61/156,508.91
  6. Step 6: Final answer
    x = 108,380.24

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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.