Home / 207,982.24-312,006-89,687.20

Finding the Fourth Proportional to 207,982.24, 312,006 and 89,687.20

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Solution

The fourth proportional to 207,982.24, 312,006 and 89,687.20 is: 134,544.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,982.24 : 312,006 = 89,687.20 : x
  2. Step 2: Convert to fraction form
    207,982.24/312,006 = 89,687.20/x
  3. Step 3: Cross multiply
    207,982.24x = 312,006 × 89,687.20
  4. Step 4: Simplify right side
    207,982.24x = 27,982,944,523.20
  5. Step 5: Solve for x
    x = 27,982,944,523.20/207,982.24
  6. Step 6: Final answer
    x = 134,544.88

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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.