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Finding the Third Proportional to 90,922.50 and 122,305.50

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Solution

The third proportional to 90,922.50 and 122,305.50 is: 164,520.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,922.50 : 122,305.50 = 122,305.50 : x
  2. Step 2: Convert to fraction form
    90,922.50/122,305.50 = 122,305.50/x
  3. Step 3: Cross multiply
    90,922.50x = 122,305.50 × 122,305.50
  4. Step 4: Simplify right side
    90,922.50x = 14,958,635,330.25
  5. Step 5: Solve for x
    x = 14,958,635,330.25/90,922.50
  6. Step 6: Final answer
    x = 164,520.72

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.