Home / 151,907.28-209,335.92-109,385.52

Finding the Fourth Proportional to 151,907.28, 209,335.92 and 109,385.52

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Solution

The fourth proportional to 151,907.28, 209,335.92 and 109,385.52 is: 150,738.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,907.28 : 209,335.92 = 109,385.52 : x
  2. Step 2: Convert to fraction form
    151,907.28/209,335.92 = 109,385.52/x
  3. Step 3: Cross multiply
    151,907.28x = 209,335.92 × 109,385.52
  4. Step 4: Simplify right side
    151,907.28x = 22,898,318,463.88
  5. Step 5: Solve for x
    x = 22,898,318,463.88/151,907.28
  6. Step 6: Final answer
    x = 150,738.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.