Home / 231,819.20-347,749.68-82,043.36

Finding the Fourth Proportional to 231,819.20, 347,749.68 and 82,043.36

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Solution

The fourth proportional to 231,819.20, 347,749.68 and 82,043.36 is: 123,072.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,819.20 : 347,749.68 = 82,043.36 : x
  2. Step 2: Convert to fraction form
    231,819.20/347,749.68 = 82,043.36/x
  3. Step 3: Cross multiply
    231,819.20x = 347,749.68 × 82,043.36
  4. Step 4: Simplify right side
    231,819.20x = 28,530,552,186.12
  5. Step 5: Solve for x
    x = 28,530,552,186.12/231,819.20
  6. Step 6: Final answer
    x = 123,072.43

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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.