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Finding the Third Proportional to 67,220 and 99,294

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Solution

The third proportional to 67,220 and 99,294 is: 146,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,220 : 99,294 = 99,294 : x
  2. Step 2: Convert to fraction form
    67,220/99,294 = 99,294/x
  3. Step 3: Cross multiply
    67,220x = 99,294 × 99,294
  4. Step 4: Simplify right side
    67,220x = 9,859,298,436
  5. Step 5: Solve for x
    x = 9,859,298,436/67,220
  6. Step 6: Final answer
    x = 146,672.10

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.