Home / 235,289.91-324,747.23-139,778.16

Finding the Fourth Proportional to 235,289.91, 324,747.23 and 139,778.16

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Solution

The fourth proportional to 235,289.91, 324,747.23 and 139,778.16 is: 192,921.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,289.91 : 324,747.23 = 139,778.16 : x
  2. Step 2: Convert to fraction form
    235,289.91/324,747.23 = 139,778.16/x
  3. Step 3: Cross multiply
    235,289.91x = 324,747.23 × 139,778.16
  4. Step 4: Simplify right side
    235,289.91x = 45,392,568,357.80
  5. Step 5: Solve for x
    x = 45,392,568,357.80/235,289.91
  6. Step 6: Final answer
    x = 192,921.86

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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.