Home / 143,821.26-198,480.15-80,159.52

Finding the Fourth Proportional to 143,821.26, 198,480.15 and 80,159.52

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Solution

The fourth proportional to 143,821.26, 198,480.15 and 80,159.52 is: 110,623.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,821.26 : 198,480.15 = 80,159.52 : x
  2. Step 2: Convert to fraction form
    143,821.26/198,480.15 = 80,159.52/x
  3. Step 3: Cross multiply
    143,821.26x = 198,480.15 × 80,159.52
  4. Step 4: Simplify right side
    143,821.26x = 15,910,073,553.53
  5. Step 5: Solve for x
    x = 15,910,073,553.53/143,821.26
  6. Step 6: Final answer
    x = 110,623.93

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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.