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Finding the Fourth Proportional to 161,479, 242,267.82 and 82,649.08

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Solution

The fourth proportional to 161,479, 242,267.82 and 82,649.08 is: 123,998.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,479 : 242,267.82 = 82,649.08 : x
  2. Step 2: Convert to fraction form
    161,479/242,267.82 = 82,649.08/x
  3. Step 3: Cross multiply
    161,479x = 242,267.82 × 82,649.08
  4. Step 4: Simplify right side
    161,479x = 20,023,212,436.61
  5. Step 5: Solve for x
    x = 20,023,212,436.61/161,479
  6. Step 6: Final answer
    x = 123,998.86

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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.