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Finding the Third Proportional to 79,040 and 120,530

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Solution

The third proportional to 79,040 and 120,530 is: 183,799.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,040 : 120,530 = 120,530 : x
  2. Step 2: Convert to fraction form
    79,040/120,530 = 120,530/x
  3. Step 3: Cross multiply
    79,040x = 120,530 × 120,530
  4. Step 4: Simplify right side
    79,040x = 14,527,480,900
  5. Step 5: Solve for x
    x = 14,527,480,900/79,040
  6. Step 6: Final answer
    x = 183,799.10

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.