Home / 149,319.78-206,046.34-91,949.91

Finding the Fourth Proportional to 149,319.78, 206,046.34 and 91,949.91

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Solution

The fourth proportional to 149,319.78, 206,046.34 and 91,949.91 is: 126,881.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,319.78 : 206,046.34 = 91,949.91 : x
  2. Step 2: Convert to fraction form
    149,319.78/206,046.34 = 91,949.91/x
  3. Step 3: Cross multiply
    149,319.78x = 206,046.34 × 91,949.91
  4. Step 4: Simplify right side
    149,319.78x = 18,945,942,418.83
  5. Step 5: Solve for x
    x = 18,945,942,418.83/149,319.78
  6. Step 6: Final answer
    x = 126,881.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.