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Finding the Third Proportional to 79,612 and 117,929

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Solution

The third proportional to 79,612 and 117,929 is: 174,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,612 : 117,929 = 117,929 : x
  2. Step 2: Convert to fraction form
    79,612/117,929 = 117,929/x
  3. Step 3: Cross multiply
    79,612x = 117,929 × 117,929
  4. Step 4: Simplify right side
    79,612x = 13,907,249,041
  5. Step 5: Solve for x
    x = 13,907,249,041/79,612
  6. Step 6: Final answer
    x = 174,687.85

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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.