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Finding the Third Proportional to 77,166 and 163,810

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Solution

The third proportional to 77,166 and 163,810 is: 347,740.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,166 : 163,810 = 163,810 : x
  2. Step 2: Convert to fraction form
    77,166/163,810 = 163,810/x
  3. Step 3: Cross multiply
    77,166x = 163,810 × 163,810
  4. Step 4: Simplify right side
    77,166x = 26,833,716,100
  5. Step 5: Solve for x
    x = 26,833,716,100/77,166
  6. Step 6: Final answer
    x = 347,740.15

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.