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Finding the Third Proportional to 68,136 and 104,400

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Solution

The third proportional to 68,136 and 104,400 is: 159,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,136 : 104,400 = 104,400 : x
  2. Step 2: Convert to fraction form
    68,136/104,400 = 104,400/x
  3. Step 3: Cross multiply
    68,136x = 104,400 × 104,400
  4. Step 4: Simplify right side
    68,136x = 10,899,360,000
  5. Step 5: Solve for x
    x = 10,899,360,000/68,136
  6. Step 6: Final answer
    x = 159,964.78

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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.