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Finding the Third Proportional to 89,680 and 125,680

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Solution

The third proportional to 89,680 and 125,680 is: 176,131.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,680 : 125,680 = 125,680 : x
  2. Step 2: Convert to fraction form
    89,680/125,680 = 125,680/x
  3. Step 3: Cross multiply
    89,680x = 125,680 × 125,680
  4. Step 4: Simplify right side
    89,680x = 15,795,462,400
  5. Step 5: Solve for x
    x = 15,795,462,400/89,680
  6. Step 6: Final answer
    x = 176,131.38

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.