Home / 188,078.62-259,553.27-103,195.66

Finding the Fourth Proportional to 188,078.62, 259,553.27 and 103,195.66

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Solution

The fourth proportional to 188,078.62, 259,553.27 and 103,195.66 is: 142,412.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,078.62 : 259,553.27 = 103,195.66 : x
  2. Step 2: Convert to fraction form
    188,078.62/259,553.27 = 103,195.66/x
  3. Step 3: Cross multiply
    188,078.62x = 259,553.27 × 103,195.66
  4. Step 4: Simplify right side
    188,078.62x = 26,784,771,002.81
  5. Step 5: Solve for x
    x = 26,784,771,002.81/188,078.62
  6. Step 6: Final answer
    x = 142,412.63

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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.