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Finding the Third Proportional to 86 and 132.16

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Solution

The third proportional to 86 and 132.16 is: 203.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86 : 132.16 = 132.16 : x
  2. Step 2: Convert to fraction form
    86/132.16 = 132.16/x
  3. Step 3: Cross multiply
    86x = 132.16 × 132.16
  4. Step 4: Simplify right side
    86x = 17,465.27
  5. Step 5: Solve for x
    x = 17,465.27/86
  6. Step 6: Final answer
    x = 203.08

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.