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Finding the Third Proportional to 68.19 and 116.75

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Solution

The third proportional to 68.19 and 116.75 is: 199.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.19 : 116.75 = 116.75 : x
  2. Step 2: Convert to fraction form
    68.19/116.75 = 116.75/x
  3. Step 3: Cross multiply
    68.19x = 116.75 × 116.75
  4. Step 4: Simplify right side
    68.19x = 13,631.47
  5. Step 5: Solve for x
    x = 13,631.47/68.19
  6. Step 6: Final answer
    x = 199.92

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Why These Related Problems?

These problems maintain the same ratio (1.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.