Home / 162,380.03-243,721.91-82,475.15

Finding the Fourth Proportional to 162,380.03, 243,721.91 and 82,475.15

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Solution

The fourth proportional to 162,380.03, 243,721.91 and 82,475.15 is: 123,789.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,380.03 : 243,721.91 = 82,475.15 : x
  2. Step 2: Convert to fraction form
    162,380.03/243,721.91 = 82,475.15/x
  3. Step 3: Cross multiply
    162,380.03x = 243,721.91 × 82,475.15
  4. Step 4: Simplify right side
    162,380.03x = 20,101,000,073.11
  5. Step 5: Solve for x
    x = 20,101,000,073.11/162,380.03
  6. Step 6: Final answer
    x = 123,789.86

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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.