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Finding the Third Proportional to 79,622 and 122,197

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Solution

The third proportional to 79,622 and 122,197 is: 187,537.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,622 : 122,197 = 122,197 : x
  2. Step 2: Convert to fraction form
    79,622/122,197 = 122,197/x
  3. Step 3: Cross multiply
    79,622x = 122,197 × 122,197
  4. Step 4: Simplify right side
    79,622x = 14,932,106,809
  5. Step 5: Solve for x
    x = 14,932,106,809/79,622
  6. Step 6: Final answer
    x = 187,537.45

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.