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Finding the Third Proportional to 82,311 and 122,925

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Solution

The third proportional to 82,311 and 122,925 is: 183,578.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,311 : 122,925 = 122,925 : x
  2. Step 2: Convert to fraction form
    82,311/122,925 = 122,925/x
  3. Step 3: Cross multiply
    82,311x = 122,925 × 122,925
  4. Step 4: Simplify right side
    82,311x = 15,110,555,625
  5. Step 5: Solve for x
    x = 15,110,555,625/82,311
  6. Step 6: Final answer
    x = 183,578.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.