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Finding the Third Proportional to 67,808 and 99,270

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Solution

The third proportional to 67,808 and 99,270 is: 145,329.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,808 : 99,270 = 99,270 : x
  2. Step 2: Convert to fraction form
    67,808/99,270 = 99,270/x
  3. Step 3: Cross multiply
    67,808x = 99,270 × 99,270
  4. Step 4: Simplify right side
    67,808x = 9,854,532,900
  5. Step 5: Solve for x
    x = 9,854,532,900/67,808
  6. Step 6: Final answer
    x = 145,329.94

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.