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Finding the Third Proportional to 103,840 and 162,680

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Solution

The third proportional to 103,840 and 162,680 is: 254,861.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,840 : 162,680 = 162,680 : x
  2. Step 2: Convert to fraction form
    103,840/162,680 = 162,680/x
  3. Step 3: Cross multiply
    103,840x = 162,680 × 162,680
  4. Step 4: Simplify right side
    103,840x = 26,464,782,400
  5. Step 5: Solve for x
    x = 26,464,782,400/103,840
  6. Step 6: Final answer
    x = 254,861.16

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.