Home / 188,581.14-283,057.61-138,520.71

Finding the Fourth Proportional to 188,581.14, 283,057.61 and 138,520.71

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Solution

The fourth proportional to 188,581.14, 283,057.61 and 138,520.71 is: 207,917.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,581.14 : 283,057.61 = 138,520.71 : x
  2. Step 2: Convert to fraction form
    188,581.14/283,057.61 = 138,520.71/x
  3. Step 3: Cross multiply
    188,581.14x = 283,057.61 × 138,520.71
  4. Step 4: Simplify right side
    188,581.14x = 39,209,340,415.50
  5. Step 5: Solve for x
    x = 39,209,340,415.50/188,581.14
  6. Step 6: Final answer
    x = 207,917.61

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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.