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Finding the Third Proportional to 89,601.75 and 121,759.88

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Solution

The third proportional to 89,601.75 and 121,759.88 is: 165,459.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,601.75 : 121,759.88 = 121,759.88 : x
  2. Step 2: Convert to fraction form
    89,601.75/121,759.88 = 121,759.88/x
  3. Step 3: Cross multiply
    89,601.75x = 121,759.88 × 121,759.88
  4. Step 4: Simplify right side
    89,601.75x = 14,825,467,160.02
  5. Step 5: Solve for x
    x = 14,825,467,160.02/89,601.75
  6. Step 6: Final answer
    x = 165,459.57

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.