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Finding the Third Proportional to 68,876 and 105,354

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Solution

The third proportional to 68,876 and 105,354 is: 161,151.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,876 : 105,354 = 105,354 : x
  2. Step 2: Convert to fraction form
    68,876/105,354 = 105,354/x
  3. Step 3: Cross multiply
    68,876x = 105,354 × 105,354
  4. Step 4: Simplify right side
    68,876x = 11,099,465,316
  5. Step 5: Solve for x
    x = 11,099,465,316/68,876
  6. Step 6: Final answer
    x = 161,151.42

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.