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Finding the Third Proportional to 68,952 and 107,688

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Solution

The third proportional to 68,952 and 107,688 is: 168,185.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,952 : 107,688 = 107,688 : x
  2. Step 2: Convert to fraction form
    68,952/107,688 = 107,688/x
  3. Step 3: Cross multiply
    68,952x = 107,688 × 107,688
  4. Step 4: Simplify right side
    68,952x = 11,596,705,344
  5. Step 5: Solve for x
    x = 11,596,705,344/68,952
  6. Step 6: Final answer
    x = 168,185.19

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.