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Finding the Third Proportional to 79,140 and 167,109

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Solution

The third proportional to 79,140 and 167,109 is: 352,860.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,140 : 167,109 = 167,109 : x
  2. Step 2: Convert to fraction form
    79,140/167,109 = 167,109/x
  3. Step 3: Cross multiply
    79,140x = 167,109 × 167,109
  4. Step 4: Simplify right side
    79,140x = 27,925,417,881
  5. Step 5: Solve for x
    x = 27,925,417,881/79,140
  6. Step 6: Final answer
    x = 352,860.98

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.