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Finding the Third Proportional to 76,955 and 115,655

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Solution

The third proportional to 76,955 and 115,655 is: 173,816.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,955 : 115,655 = 115,655 : x
  2. Step 2: Convert to fraction form
    76,955/115,655 = 115,655/x
  3. Step 3: Cross multiply
    76,955x = 115,655 × 115,655
  4. Step 4: Simplify right side
    76,955x = 13,376,079,025
  5. Step 5: Solve for x
    x = 13,376,079,025/76,955
  6. Step 6: Final answer
    x = 173,816.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.