Home / 143,944.14-198,643.18-80,286.04

Finding the Fourth Proportional to 143,944.14, 198,643.18 and 80,286.04

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Solution

The fourth proportional to 143,944.14, 198,643.18 and 80,286.04 is: 110,794.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,944.14 : 198,643.18 = 80,286.04 : x
  2. Step 2: Convert to fraction form
    143,944.14/198,643.18 = 80,286.04/x
  3. Step 3: Cross multiply
    143,944.14x = 198,643.18 × 80,286.04
  4. Step 4: Simplify right side
    143,944.14x = 15,948,274,295.21
  5. Step 5: Solve for x
    x = 15,948,274,295.21/143,944.14
  6. Step 6: Final answer
    x = 110,794.88

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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.