Home / 187,001.28-280,604-108,269.28

Finding the Fourth Proportional to 187,001.28, 280,604 and 108,269.28

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Solution

The fourth proportional to 187,001.28, 280,604 and 108,269.28 is: 162,463.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,001.28 : 280,604 = 108,269.28 : x
  2. Step 2: Convert to fraction form
    187,001.28/280,604 = 108,269.28/x
  3. Step 3: Cross multiply
    187,001.28x = 280,604 × 108,269.28
  4. Step 4: Simplify right side
    187,001.28x = 30,380,793,045.12
  5. Step 5: Solve for x
    x = 30,380,793,045.12/187,001.28
  6. Step 6: Final answer
    x = 162,463.02

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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.