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Finding the Third Proportional to 68,576 and 103,724

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Solution

The third proportional to 68,576 and 103,724 is: 156,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,576 : 103,724 = 103,724 : x
  2. Step 2: Convert to fraction form
    68,576/103,724 = 103,724/x
  3. Step 3: Cross multiply
    68,576x = 103,724 × 103,724
  4. Step 4: Simplify right side
    68,576x = 10,758,668,176
  5. Step 5: Solve for x
    x = 10,758,668,176/68,576
  6. Step 6: Final answer
    x = 156,886.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.