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Finding the Third Proportional to 68,710 and 109,298

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Solution

The third proportional to 68,710 and 109,298 is: 173,861.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,710 : 109,298 = 109,298 : x
  2. Step 2: Convert to fraction form
    68,710/109,298 = 109,298/x
  3. Step 3: Cross multiply
    68,710x = 109,298 × 109,298
  4. Step 4: Simplify right side
    68,710x = 11,946,052,804
  5. Step 5: Solve for x
    x = 11,946,052,804/68,710
  6. Step 6: Final answer
    x = 173,861.92

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.