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Finding the Third Proportional to 103,486 and 156,039

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Solution

The third proportional to 103,486 and 156,039 is: 235,279.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,486 : 156,039 = 156,039 : x
  2. Step 2: Convert to fraction form
    103,486/156,039 = 156,039/x
  3. Step 3: Cross multiply
    103,486x = 156,039 × 156,039
  4. Step 4: Simplify right side
    103,486x = 24,348,169,521
  5. Step 5: Solve for x
    x = 24,348,169,521/103,486
  6. Step 6: Final answer
    x = 235,279.84

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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.