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Finding the Third Proportional to 84,511 and 126,502.50

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Solution

The third proportional to 84,511 and 126,502.50 is: 189,358.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,511 : 126,502.50 = 126,502.50 : x
  2. Step 2: Convert to fraction form
    84,511/126,502.50 = 126,502.50/x
  3. Step 3: Cross multiply
    84,511x = 126,502.50 × 126,502.50
  4. Step 4: Simplify right side
    84,511x = 16,002,882,506.25
  5. Step 5: Solve for x
    x = 16,002,882,506.25/84,511
  6. Step 6: Final answer
    x = 189,358.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.