Home / 201,517.17-278,086.68-110,872.20

Finding the Fourth Proportional to 201,517.17, 278,086.68 and 110,872.20

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Solution

The fourth proportional to 201,517.17, 278,086.68 and 110,872.20 is: 152,999.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,517.17 : 278,086.68 = 110,872.20 : x
  2. Step 2: Convert to fraction form
    201,517.17/278,086.68 = 110,872.20/x
  3. Step 3: Cross multiply
    201,517.17x = 278,086.68 × 110,872.20
  4. Step 4: Simplify right side
    201,517.17x = 30,832,082,002.30
  5. Step 5: Solve for x
    x = 30,832,082,002.30/201,517.17
  6. Step 6: Final answer
    x = 152,999.78

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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.