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Finding the Fourth Proportional to 68,168.79, 102,251.66 and 18,248.85

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Solution

The fourth proportional to 68,168.79, 102,251.66 and 18,248.85 is: 27,372.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,168.79 : 102,251.66 = 18,248.85 : x
  2. Step 2: Convert to fraction form
    68,168.79/102,251.66 = 18,248.85/x
  3. Step 3: Cross multiply
    68,168.79x = 102,251.66 × 18,248.85
  4. Step 4: Simplify right side
    68,168.79x = 1,865,975,114.35
  5. Step 5: Solve for x
    x = 1,865,975,114.35/68,168.79
  6. Step 6: Final answer
    x = 27,372.87

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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.