Home / 272,179.20-408,265.92-85,192.32

Finding the Fourth Proportional to 272,179.20, 408,265.92 and 85,192.32

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Solution

The fourth proportional to 272,179.20, 408,265.92 and 85,192.32 is: 127,787.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,179.20 : 408,265.92 = 85,192.32 : x
  2. Step 2: Convert to fraction form
    272,179.20/408,265.92 = 85,192.32/x
  3. Step 3: Cross multiply
    272,179.20x = 408,265.92 × 85,192.32
  4. Step 4: Simplify right side
    272,179.20x = 34,781,120,901.73
  5. Step 5: Solve for x
    x = 34,781,120,901.73/272,179.20
  6. Step 6: Final answer
    x = 127,787.58

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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.