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Finding the Third Proportional to 103,120 and 155,512

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Solution

The third proportional to 103,120 and 155,512 is: 234,522.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,120 : 155,512 = 155,512 : x
  2. Step 2: Convert to fraction form
    103,120/155,512 = 155,512/x
  3. Step 3: Cross multiply
    103,120x = 155,512 × 155,512
  4. Step 4: Simplify right side
    103,120x = 24,183,982,144
  5. Step 5: Solve for x
    x = 24,183,982,144/103,120
  6. Step 6: Final answer
    x = 234,522.71

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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.