Home / 143,752.88-198,373.20-80,089.04

Finding the Fourth Proportional to 143,752.88, 198,373.20 and 80,089.04

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Solution

The fourth proportional to 143,752.88, 198,373.20 and 80,089.04 is: 110,519.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,752.88 : 198,373.20 = 80,089.04 : x
  2. Step 2: Convert to fraction form
    143,752.88/198,373.20 = 80,089.04/x
  3. Step 3: Cross multiply
    143,752.88x = 198,373.20 × 80,089.04
  4. Step 4: Simplify right side
    143,752.88x = 15,887,519,149.73
  5. Step 5: Solve for x
    x = 15,887,519,149.73/143,752.88
  6. Step 6: Final answer
    x = 110,519.66

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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.