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Finding the Third Proportional to 68,954 and 105,436

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Solution

The third proportional to 68,954 and 105,436 is: 161,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,954 : 105,436 = 105,436 : x
  2. Step 2: Convert to fraction form
    68,954/105,436 = 105,436/x
  3. Step 3: Cross multiply
    68,954x = 105,436 × 105,436
  4. Step 4: Simplify right side
    68,954x = 11,116,750,096
  5. Step 5: Solve for x
    x = 11,116,750,096/68,954
  6. Step 6: Final answer
    x = 161,219.80

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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.