Home / 185,299.43-278,002.34-77,207.75

Finding the Fourth Proportional to 185,299.43, 278,002.34 and 77,207.75

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Solution

The fourth proportional to 185,299.43, 278,002.34 and 77,207.75 is: 115,833.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,299.43 : 278,002.34 = 77,207.75 : x
  2. Step 2: Convert to fraction form
    185,299.43/278,002.34 = 77,207.75/x
  3. Step 3: Cross multiply
    185,299.43x = 278,002.34 × 77,207.75
  4. Step 4: Simplify right side
    185,299.43x = 21,463,933,390.08
  5. Step 5: Solve for x
    x = 21,463,933,390.08/185,299.43
  6. Step 6: Final answer
    x = 115,833.78

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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.