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Finding the Third Proportional to 77,073 and 115,294.50

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Solution

The third proportional to 77,073 and 115,294.50 is: 172,470.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,073 : 115,294.50 = 115,294.50 : x
  2. Step 2: Convert to fraction form
    77,073/115,294.50 = 115,294.50/x
  3. Step 3: Cross multiply
    77,073x = 115,294.50 × 115,294.50
  4. Step 4: Simplify right side
    77,073x = 13,292,821,730.25
  5. Step 5: Solve for x
    x = 13,292,821,730.25/77,073
  6. Step 6: Final answer
    x = 172,470.54

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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.