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Finding the Third Proportional to 65,712 and 100,539

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Solution

The third proportional to 65,712 and 100,539 is: 153,824.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,712 : 100,539 = 100,539 : x
  2. Step 2: Convert to fraction form
    65,712/100,539 = 100,539/x
  3. Step 3: Cross multiply
    65,712x = 100,539 × 100,539
  4. Step 4: Simplify right side
    65,712x = 10,108,090,521
  5. Step 5: Solve for x
    x = 10,108,090,521/65,712
  6. Step 6: Final answer
    x = 153,824.12

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.