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Finding the Fourth Proportional to 445,042.88, 667,557.03 and 108,086.30

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Solution

The fourth proportional to 445,042.88, 667,557.03 and 108,086.30 is: 162,127.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,042.88 : 667,557.03 = 108,086.30 : x
  2. Step 2: Convert to fraction form
    445,042.88/667,557.03 = 108,086.30/x
  3. Step 3: Cross multiply
    445,042.88x = 667,557.03 × 108,086.30
  4. Step 4: Simplify right side
    445,042.88x = 72,153,769,411.69
  5. Step 5: Solve for x
    x = 72,153,769,411.69/445,042.88
  6. Step 6: Final answer
    x = 162,127.68

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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.