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Finding the Third Proportional to 78,674.38 and 118,664.75

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Solution

The third proportional to 78,674.38 and 118,664.75 is: 178,982.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,674.38 : 118,664.75 = 118,664.75 : x
  2. Step 2: Convert to fraction form
    78,674.38/118,664.75 = 118,664.75/x
  3. Step 3: Cross multiply
    78,674.38x = 118,664.75 × 118,664.75
  4. Step 4: Simplify right side
    78,674.38x = 14,081,322,892.56
  5. Step 5: Solve for x
    x = 14,081,322,892.56/78,674.38
  6. Step 6: Final answer
    x = 178,982.33

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.