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Finding the Fourth Proportional to 144,207.97, 199,005.83 and 79,677

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Solution

The fourth proportional to 144,207.97, 199,005.83 and 79,677 is: 109,953.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,207.97 : 199,005.83 = 79,677 : x
  2. Step 2: Convert to fraction form
    144,207.97/199,005.83 = 79,677/x
  3. Step 3: Cross multiply
    144,207.97x = 199,005.83 × 79,677
  4. Step 4: Simplify right side
    144,207.97x = 15,856,187,118.53
  5. Step 5: Solve for x
    x = 15,856,187,118.53/144,207.97
  6. Step 6: Final answer
    x = 109,953.61

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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.