Home / 160,234.32-240,001.20-81,212.88

Finding the Fourth Proportional to 160,234.32, 240,001.20 and 81,212.88

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Solution

The fourth proportional to 160,234.32, 240,001.20 and 81,212.88 is: 121,641.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,234.32 : 240,001.20 = 81,212.88 : x
  2. Step 2: Convert to fraction form
    160,234.32/240,001.20 = 81,212.88/x
  3. Step 3: Cross multiply
    160,234.32x = 240,001.20 × 81,212.88
  4. Step 4: Simplify right side
    160,234.32x = 19,491,188,655.46
  5. Step 5: Solve for x
    x = 19,491,188,655.46/160,234.32
  6. Step 6: Final answer
    x = 121,641.78

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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.