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Finding the Fourth Proportional to 68,116.44, 102,179.78 and 18,195.44

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Solution

The fourth proportional to 68,116.44, 102,179.78 and 18,195.44 is: 27,294.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,116.44 : 102,179.78 = 18,195.44 : x
  2. Step 2: Convert to fraction form
    68,116.44/102,179.78 = 18,195.44/x
  3. Step 3: Cross multiply
    68,116.44x = 102,179.78 × 18,195.44
  4. Step 4: Simplify right side
    68,116.44x = 1,859,205,522.56
  5. Step 5: Solve for x
    x = 1,859,205,522.56/68,116.44
  6. Step 6: Final answer
    x = 27,294.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.