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Finding the Third Proportional to 68,288 and 106,888

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Solution

The third proportional to 68,288 and 106,888 is: 167,306.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,288 : 106,888 = 106,888 : x
  2. Step 2: Convert to fraction form
    68,288/106,888 = 106,888/x
  3. Step 3: Cross multiply
    68,288x = 106,888 × 106,888
  4. Step 4: Simplify right side
    68,288x = 11,425,044,544
  5. Step 5: Solve for x
    x = 11,425,044,544/68,288
  6. Step 6: Final answer
    x = 167,306.77

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.