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Finding the Third Proportional to 70.88 and 110.11

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Solution

The third proportional to 70.88 and 110.11 is: 171.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.88 : 110.11 = 110.11 : x
  2. Step 2: Convert to fraction form
    70.88/110.11 = 110.11/x
  3. Step 3: Cross multiply
    70.88x = 110.11 × 110.11
  4. Step 4: Simplify right side
    70.88x = 12,124.07
  5. Step 5: Solve for x
    x = 12,124.07/70.88
  6. Step 6: Final answer
    x = 171.06

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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.