Home / 259,668.22-389,545.39-91,144.83

Finding the Fourth Proportional to 259,668.22, 389,545.39 and 91,144.83

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Solution

The fourth proportional to 259,668.22, 389,545.39 and 91,144.83 is: 136,732.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,668.22 : 389,545.39 = 91,144.83 : x
  2. Step 2: Convert to fraction form
    259,668.22/389,545.39 = 91,144.83/x
  3. Step 3: Cross multiply
    259,668.22x = 389,545.39 × 91,144.83
  4. Step 4: Simplify right side
    259,668.22x = 35,505,049,247.59
  5. Step 5: Solve for x
    x = 35,505,049,247.59/259,668.22
  6. Step 6: Final answer
    x = 136,732.36

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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.