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Finding the Third Proportional to 77,291 and 122,950

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Solution

The third proportional to 77,291 and 122,950 is: 195,581.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,291 : 122,950 = 122,950 : x
  2. Step 2: Convert to fraction form
    77,291/122,950 = 122,950/x
  3. Step 3: Cross multiply
    77,291x = 122,950 × 122,950
  4. Step 4: Simplify right side
    77,291x = 15,116,702,500
  5. Step 5: Solve for x
    x = 15,116,702,500/77,291
  6. Step 6: Final answer
    x = 195,581.67

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.