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Finding the Fourth Proportional to 143,737.84, 198,358.46 and 80,077.88

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Solution

The fourth proportional to 143,737.84, 198,358.46 and 80,077.88 is: 110,507.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,737.84 : 198,358.46 = 80,077.88 : x
  2. Step 2: Convert to fraction form
    143,737.84/198,358.46 = 80,077.88/x
  3. Step 3: Cross multiply
    143,737.84x = 198,358.46 × 80,077.88
  4. Step 4: Simplify right side
    143,737.84x = 15,884,124,956.86
  5. Step 5: Solve for x
    x = 15,884,124,956.86/143,737.84
  6. Step 6: Final answer
    x = 110,507.61

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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.