Home / 149,882.24-206,879.20-86,240.54

Finding the Fourth Proportional to 149,882.24, 206,879.20 and 86,240.54

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Solution

The fourth proportional to 149,882.24, 206,879.20 and 86,240.54 is: 119,035.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,882.24 : 206,879.20 = 86,240.54 : x
  2. Step 2: Convert to fraction form
    149,882.24/206,879.20 = 86,240.54/x
  3. Step 3: Cross multiply
    149,882.24x = 206,879.20 × 86,240.54
  4. Step 4: Simplify right side
    149,882.24x = 17,841,373,922.77
  5. Step 5: Solve for x
    x = 17,841,373,922.77/149,882.24
  6. Step 6: Final answer
    x = 119,035.94

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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.