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Finding the Third Proportional to 68,987 and 106,536

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Solution

The third proportional to 68,987 and 106,536 is: 164,522.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,987 : 106,536 = 106,536 : x
  2. Step 2: Convert to fraction form
    68,987/106,536 = 106,536/x
  3. Step 3: Cross multiply
    68,987x = 106,536 × 106,536
  4. Step 4: Simplify right side
    68,987x = 11,349,919,296
  5. Step 5: Solve for x
    x = 11,349,919,296/68,987
  6. Step 6: Final answer
    x = 164,522.58

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.