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Finding the Fourth Proportional to 144,919.62, 200,000.66 and 80,395.22

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Solution

The fourth proportional to 144,919.62, 200,000.66 and 80,395.22 is: 110,951.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,919.62 : 200,000.66 = 80,395.22 : x
  2. Step 2: Convert to fraction form
    144,919.62/200,000.66 = 80,395.22/x
  3. Step 3: Cross multiply
    144,919.62x = 200,000.66 × 80,395.22
  4. Step 4: Simplify right side
    144,919.62x = 16,079,097,060.85
  5. Step 5: Solve for x
    x = 16,079,097,060.85/144,919.62
  6. Step 6: Final answer
    x = 110,951.83

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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.