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Finding the Third Proportional to 70,079.50 and 108,811

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Solution

The third proportional to 70,079.50 and 108,811 is: 168,948.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,079.50 : 108,811 = 108,811 : x
  2. Step 2: Convert to fraction form
    70,079.50/108,811 = 108,811/x
  3. Step 3: Cross multiply
    70,079.50x = 108,811 × 108,811
  4. Step 4: Simplify right side
    70,079.50x = 11,839,833,721
  5. Step 5: Solve for x
    x = 11,839,833,721/70,079.50
  6. Step 6: Final answer
    x = 168,948.60

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.