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Finding the Third Proportional to 100,902 and 156,825

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Solution

The third proportional to 100,902 and 156,825 is: 243,742.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,902 : 156,825 = 156,825 : x
  2. Step 2: Convert to fraction form
    100,902/156,825 = 156,825/x
  3. Step 3: Cross multiply
    100,902x = 156,825 × 156,825
  4. Step 4: Simplify right side
    100,902x = 24,594,080,625
  5. Step 5: Solve for x
    x = 24,594,080,625/100,902
  6. Step 6: Final answer
    x = 243,742.25

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.