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Finding the Third Proportional to 116,115 and 178,708.50

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Solution

The third proportional to 116,115 and 178,708.50 is: 275,043.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,115 : 178,708.50 = 178,708.50 : x
  2. Step 2: Convert to fraction form
    116,115/178,708.50 = 178,708.50/x
  3. Step 3: Cross multiply
    116,115x = 178,708.50 × 178,708.50
  4. Step 4: Simplify right side
    116,115x = 31,936,727,972.25
  5. Step 5: Solve for x
    x = 31,936,727,972.25/116,115
  6. Step 6: Final answer
    x = 275,043.95

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.