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Finding the Third Proportional to 90,558 and 120,771

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Solution

The third proportional to 90,558 and 120,771 is: 161,064.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,558 : 120,771 = 120,771 : x
  2. Step 2: Convert to fraction form
    90,558/120,771 = 120,771/x
  3. Step 3: Cross multiply
    90,558x = 120,771 × 120,771
  4. Step 4: Simplify right side
    90,558x = 14,585,634,441
  5. Step 5: Solve for x
    x = 14,585,634,441/90,558
  6. Step 6: Final answer
    x = 161,064.01

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.