Home / 143,712.97-198,330.02-80,050.75

Finding the Fourth Proportional to 143,712.97, 198,330.02 and 80,050.75

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Solution

The fourth proportional to 143,712.97, 198,330.02 and 80,050.75 is: 110,473.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,712.97 : 198,330.02 = 80,050.75 : x
  2. Step 2: Convert to fraction form
    143,712.97/198,330.02 = 80,050.75/x
  3. Step 3: Cross multiply
    143,712.97x = 198,330.02 × 80,050.75
  4. Step 4: Simplify right side
    143,712.97x = 15,876,465,456.61
  5. Step 5: Solve for x
    x = 15,876,465,456.61/143,712.97
  6. Step 6: Final answer
    x = 110,473.44

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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.