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Finding the Third Proportional to 108,521 and 161,206

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Solution

The third proportional to 108,521 and 161,206 is: 239,468.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,521 : 161,206 = 161,206 : x
  2. Step 2: Convert to fraction form
    108,521/161,206 = 161,206/x
  3. Step 3: Cross multiply
    108,521x = 161,206 × 161,206
  4. Step 4: Simplify right side
    108,521x = 25,987,374,436
  5. Step 5: Solve for x
    x = 25,987,374,436/108,521
  6. Step 6: Final answer
    x = 239,468.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.