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Finding the Third Proportional to 90,668 and 136,081

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Solution

The third proportional to 90,668 and 136,081 is: 204,240.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,668 : 136,081 = 136,081 : x
  2. Step 2: Convert to fraction form
    90,668/136,081 = 136,081/x
  3. Step 3: Cross multiply
    90,668x = 136,081 × 136,081
  4. Step 4: Simplify right side
    90,668x = 18,518,038,561
  5. Step 5: Solve for x
    x = 18,518,038,561/90,668
  6. Step 6: Final answer
    x = 204,240.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.