Home / 231,836.39-347,778.19-80,013.71

Finding the Fourth Proportional to 231,836.39, 347,778.19 and 80,013.71

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Solution

The fourth proportional to 231,836.39, 347,778.19 and 80,013.71 is: 120,028.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,836.39 : 347,778.19 = 80,013.71 : x
  2. Step 2: Convert to fraction form
    231,836.39/347,778.19 = 80,013.71/x
  3. Step 3: Cross multiply
    231,836.39x = 347,778.19 × 80,013.71
  4. Step 4: Simplify right side
    231,836.39x = 27,827,023,908.40
  5. Step 5: Solve for x
    x = 27,827,023,908.40/231,836.39
  6. Step 6: Final answer
    x = 120,028.71

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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.