Home / 149,709.24-206,640.45-86,067.54

Finding the Fourth Proportional to 149,709.24, 206,640.45 and 86,067.54

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Solution

The fourth proportional to 149,709.24, 206,640.45 and 86,067.54 is: 118,797.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,709.24 : 206,640.45 = 86,067.54 : x
  2. Step 2: Convert to fraction form
    149,709.24/206,640.45 = 86,067.54/x
  3. Step 3: Cross multiply
    149,709.24x = 206,640.45 × 86,067.54
  4. Step 4: Simplify right side
    149,709.24x = 17,785,035,195.99
  5. Step 5: Solve for x
    x = 17,785,035,195.99/149,709.24
  6. Step 6: Final answer
    x = 118,797.18

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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.