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Finding the Third Proportional to 68,538 and 109,367

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Solution

The third proportional to 68,538 and 109,367 is: 174,518.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,538 : 109,367 = 109,367 : x
  2. Step 2: Convert to fraction form
    68,538/109,367 = 109,367/x
  3. Step 3: Cross multiply
    68,538x = 109,367 × 109,367
  4. Step 4: Simplify right side
    68,538x = 11,961,140,689
  5. Step 5: Solve for x
    x = 11,961,140,689/68,538
  6. Step 6: Final answer
    x = 174,518.38

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.