Home / 156,262.20-215,626.44-87,338.96

Finding the Fourth Proportional to 156,262.20, 215,626.44 and 87,338.96

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Solution

The fourth proportional to 156,262.20, 215,626.44 and 87,338.96 is: 120,519.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,262.20 : 215,626.44 = 87,338.96 : x
  2. Step 2: Convert to fraction form
    156,262.20/215,626.44 = 87,338.96/x
  3. Step 3: Cross multiply
    156,262.20x = 215,626.44 × 87,338.96
  4. Step 4: Simplify right side
    156,262.20x = 18,832,589,018.10
  5. Step 5: Solve for x
    x = 18,832,589,018.10/156,262.20
  6. Step 6: Final answer
    x = 120,519.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.