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Finding the Third Proportional to 126,690 and 170,559

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Solution

The third proportional to 126,690 and 170,559 is: 229,618.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,690 : 170,559 = 170,559 : x
  2. Step 2: Convert to fraction form
    126,690/170,559 = 170,559/x
  3. Step 3: Cross multiply
    126,690x = 170,559 × 170,559
  4. Step 4: Simplify right side
    126,690x = 29,090,372,481
  5. Step 5: Solve for x
    x = 29,090,372,481/126,690
  6. Step 6: Final answer
    x = 229,618.54

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.