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Finding the Third Proportional to 68,810 and 96,900

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Solution

The third proportional to 68,810 and 96,900 is: 136,457.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,810 : 96,900 = 96,900 : x
  2. Step 2: Convert to fraction form
    68,810/96,900 = 96,900/x
  3. Step 3: Cross multiply
    68,810x = 96,900 × 96,900
  4. Step 4: Simplify right side
    68,810x = 9,389,610,000
  5. Step 5: Solve for x
    x = 9,389,610,000/68,810
  6. Step 6: Final answer
    x = 136,457.06

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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.