Home / 144,034.43-198,767.61-80,372.21

Finding the Fourth Proportional to 144,034.43, 198,767.61 and 80,372.21

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Solution

The fourth proportional to 144,034.43, 198,767.61 and 80,372.21 is: 110,913.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,034.43 : 198,767.61 = 80,372.21 : x
  2. Step 2: Convert to fraction form
    144,034.43/198,767.61 = 80,372.21/x
  3. Step 3: Cross multiply
    144,034.43x = 198,767.61 × 80,372.21
  4. Step 4: Simplify right side
    144,034.43x = 15,975,391,098.28
  5. Step 5: Solve for x
    x = 15,975,391,098.28/144,034.43
  6. Step 6: Final answer
    x = 110,913.70

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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.