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Finding the Third Proportional to 77,166 and 115,955

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Solution

The third proportional to 77,166 and 115,955 is: 174,242.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,166 : 115,955 = 115,955 : x
  2. Step 2: Convert to fraction form
    77,166/115,955 = 115,955/x
  3. Step 3: Cross multiply
    77,166x = 115,955 × 115,955
  4. Step 4: Simplify right side
    77,166x = 13,445,562,025
  5. Step 5: Solve for x
    x = 13,445,562,025/77,166
  6. Step 6: Final answer
    x = 174,242.05

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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.