Home / 143,956.11-198,658.92-80,293.86

Finding the Fourth Proportional to 143,956.11, 198,658.92 and 80,293.86

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Solution

The fourth proportional to 143,956.11, 198,658.92 and 80,293.86 is: 110,805.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,956.11 : 198,658.92 = 80,293.86 : x
  2. Step 2: Convert to fraction form
    143,956.11/198,658.92 = 80,293.86/x
  3. Step 3: Cross multiply
    143,956.11x = 198,658.92 × 80,293.86
  4. Step 4: Simplify right side
    143,956.11x = 15,951,091,510.23
  5. Step 5: Solve for x
    x = 15,951,091,510.23/143,956.11
  6. Step 6: Final answer
    x = 110,805.24

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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.