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Finding the Third Proportional to 70,481.81 and 109,301.91

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Solution

The third proportional to 70,481.81 and 109,301.91 is: 169,503.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,481.81 : 109,301.91 = 109,301.91 : x
  2. Step 2: Convert to fraction form
    70,481.81/109,301.91 = 109,301.91/x
  3. Step 3: Cross multiply
    70,481.81x = 109,301.91 × 109,301.91
  4. Step 4: Simplify right side
    70,481.81x = 11,946,906,709.88
  5. Step 5: Solve for x
    x = 11,946,906,709.88/70,481.81
  6. Step 6: Final answer
    x = 169,503.40

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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.