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Finding the Third Proportional to 69.66 and 97.69

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Solution

The third proportional to 69.66 and 97.69 is: 137.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69.66 : 97.69 = 97.69 : x
  2. Step 2: Convert to fraction form
    69.66/97.69 = 97.69/x
  3. Step 3: Cross multiply
    69.66x = 97.69 × 97.69
  4. Step 4: Simplify right side
    69.66x = 9,542.85
  5. Step 5: Solve for x
    x = 9,542.85/69.66
  6. Step 6: Final answer
    x = 137.00

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.