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Finding the Third Proportional to 91,776.38 and 129,917.25

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Solution

The third proportional to 91,776.38 and 129,917.25 is: 183,908.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,776.38 : 129,917.25 = 129,917.25 : x
  2. Step 2: Convert to fraction form
    91,776.38/129,917.25 = 129,917.25/x
  3. Step 3: Cross multiply
    91,776.38x = 129,917.25 × 129,917.25
  4. Step 4: Simplify right side
    91,776.38x = 16,878,491,847.56
  5. Step 5: Solve for x
    x = 16,878,491,847.56/91,776.38
  6. Step 6: Final answer
    x = 183,908.90

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.