Home / 40,198.14-60,305.76-12,120.30

Finding the Fourth Proportional to 40,198.14, 60,305.76 and 12,120.30

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Solution

The fourth proportional to 40,198.14, 60,305.76 and 12,120.30 is: 18,183.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,198.14 : 60,305.76 = 12,120.30 : x
  2. Step 2: Convert to fraction form
    40,198.14/60,305.76 = 12,120.30/x
  3. Step 3: Cross multiply
    40,198.14x = 60,305.76 × 12,120.30
  4. Step 4: Simplify right side
    40,198.14x = 730,923,902.93
  5. Step 5: Solve for x
    x = 730,923,902.93/40,198.14
  6. Step 6: Final answer
    x = 18,183.03

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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.