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Finding the Third Proportional to 68,388 and 103,032

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Solution

The third proportional to 68,388 and 103,032 is: 155,225.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,388 : 103,032 = 103,032 : x
  2. Step 2: Convert to fraction form
    68,388/103,032 = 103,032/x
  3. Step 3: Cross multiply
    68,388x = 103,032 × 103,032
  4. Step 4: Simplify right side
    68,388x = 10,615,593,024
  5. Step 5: Solve for x
    x = 10,615,593,024/68,388
  6. Step 6: Final answer
    x = 155,225.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.