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Finding the Fourth Proportional to 68,114.88, 102,169.20 and 18,193.92

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Solution

The fourth proportional to 68,114.88, 102,169.20 and 18,193.92 is: 27,290.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,114.88 : 102,169.20 = 18,193.92 : x
  2. Step 2: Convert to fraction form
    68,114.88/102,169.20 = 18,193.92/x
  3. Step 3: Cross multiply
    68,114.88x = 102,169.20 × 18,193.92
  4. Step 4: Simplify right side
    68,114.88x = 1,858,858,251.26
  5. Step 5: Solve for x
    x = 1,858,858,251.26/68,114.88
  6. Step 6: Final answer
    x = 27,290.05

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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.