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Finding the Third Proportional to 78,736 and 166,368

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Solution

The third proportional to 78,736 and 166,368 is: 351,533.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,736 : 166,368 = 166,368 : x
  2. Step 2: Convert to fraction form
    78,736/166,368 = 166,368/x
  3. Step 3: Cross multiply
    78,736x = 166,368 × 166,368
  4. Step 4: Simplify right side
    78,736x = 27,678,311,424
  5. Step 5: Solve for x
    x = 27,678,311,424/78,736
  6. Step 6: Final answer
    x = 351,533.12

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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.