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Finding the Fourth Proportional to 104,790, 144,624.84 and 67,144.44

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Solution

The fourth proportional to 104,790, 144,624.84 and 67,144.44 is: 92,668.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,790 : 144,624.84 = 67,144.44 : x
  2. Step 2: Convert to fraction form
    104,790/144,624.84 = 67,144.44/x
  3. Step 3: Cross multiply
    104,790x = 144,624.84 × 67,144.44
  4. Step 4: Simplify right side
    104,790x = 9,710,753,891.89
  5. Step 5: Solve for x
    x = 9,710,753,891.89/104,790
  6. Step 6: Final answer
    x = 92,668.71

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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.