Home / 208,331.16-312,078.78-95,854.68

Finding the Fourth Proportional to 208,331.16, 312,078.78 and 95,854.68

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Solution

The fourth proportional to 208,331.16, 312,078.78 and 95,854.68 is: 143,589.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,331.16 : 312,078.78 = 95,854.68 : x
  2. Step 2: Convert to fraction form
    208,331.16/312,078.78 = 95,854.68/x
  3. Step 3: Cross multiply
    208,331.16x = 312,078.78 × 95,854.68
  4. Step 4: Simplify right side
    208,331.16x = 29,914,211,591.69
  5. Step 5: Solve for x
    x = 29,914,211,591.69/208,331.16
  6. Step 6: Final answer
    x = 143,589.71

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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.