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Finding the Third Proportional to 68,918 and 103,377

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Solution

The third proportional to 68,918 and 103,377 is: 155,065.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,918 : 103,377 = 103,377 : x
  2. Step 2: Convert to fraction form
    68,918/103,377 = 103,377/x
  3. Step 3: Cross multiply
    68,918x = 103,377 × 103,377
  4. Step 4: Simplify right side
    68,918x = 10,686,804,129
  5. Step 5: Solve for x
    x = 10,686,804,129/68,918
  6. Step 6: Final answer
    x = 155,065.50

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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.