Home / 143,996.30-198,711.06-80,332.46

Finding the Fourth Proportional to 143,996.30, 198,711.06 and 80,332.46

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Solution

The fourth proportional to 143,996.30, 198,711.06 and 80,332.46 is: 110,856.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,996.30 : 198,711.06 = 80,332.46 : x
  2. Step 2: Convert to fraction form
    143,996.30/198,711.06 = 80,332.46/x
  3. Step 3: Cross multiply
    143,996.30x = 198,711.06 × 80,332.46
  4. Step 4: Simplify right side
    143,996.30x = 15,962,948,279.01
  5. Step 5: Solve for x
    x = 15,962,948,279.01/143,996.30
  6. Step 6: Final answer
    x = 110,856.66

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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.