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Finding the Third Proportional to 67.50 and 96.19

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Solution

The third proportional to 67.50 and 96.19 is: 137.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.50 : 96.19 = 96.19 : x
  2. Step 2: Convert to fraction form
    67.50/96.19 = 96.19/x
  3. Step 3: Cross multiply
    67.50x = 96.19 × 96.19
  4. Step 4: Simplify right side
    67.50x = 9,252.04
  5. Step 5: Solve for x
    x = 9,252.04/67.50
  6. Step 6: Final answer
    x = 137.07

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.