Home / 153,991.38-231,397.11-82,968.54

Finding the Fourth Proportional to 153,991.38, 231,397.11 and 82,968.54

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Solution

The fourth proportional to 153,991.38, 231,397.11 and 82,968.54 is: 124,673.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,991.38 : 231,397.11 = 82,968.54 : x
  2. Step 2: Convert to fraction form
    153,991.38/231,397.11 = 82,968.54/x
  3. Step 3: Cross multiply
    153,991.38x = 231,397.11 × 82,968.54
  4. Step 4: Simplify right side
    153,991.38x = 19,198,680,376.92
  5. Step 5: Solve for x
    x = 19,198,680,376.92/153,991.38
  6. Step 6: Final answer
    x = 124,673.73

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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.