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Finding the Third Proportional to 67,620 and 97,940

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Solution

The third proportional to 67,620 and 97,940 is: 141,855.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,620 : 97,940 = 97,940 : x
  2. Step 2: Convert to fraction form
    67,620/97,940 = 97,940/x
  3. Step 3: Cross multiply
    67,620x = 97,940 × 97,940
  4. Step 4: Simplify right side
    67,620x = 9,592,243,600
  5. Step 5: Solve for x
    x = 9,592,243,600/67,620
  6. Step 6: Final answer
    x = 141,855.13

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.