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Finding the Third Proportional to 68,820 and 96,910

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Solution

The third proportional to 68,820 and 96,910 is: 136,465.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,820 : 96,910 = 96,910 : x
  2. Step 2: Convert to fraction form
    68,820/96,910 = 96,910/x
  3. Step 3: Cross multiply
    68,820x = 96,910 × 96,910
  4. Step 4: Simplify right side
    68,820x = 9,391,548,100
  5. Step 5: Solve for x
    x = 9,391,548,100/68,820
  6. Step 6: Final answer
    x = 136,465.39

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.