Home / 185,939.88-278,909.82-75,209.64

Finding the Fourth Proportional to 185,939.88, 278,909.82 and 75,209.64

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Solution

The fourth proportional to 185,939.88, 278,909.82 and 75,209.64 is: 112,814.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,939.88 : 278,909.82 = 75,209.64 : x
  2. Step 2: Convert to fraction form
    185,939.88/278,909.82 = 75,209.64/x
  3. Step 3: Cross multiply
    185,939.88x = 278,909.82 × 75,209.64
  4. Step 4: Simplify right side
    185,939.88x = 20,976,707,154.66
  5. Step 5: Solve for x
    x = 20,976,707,154.66/185,939.88
  6. Step 6: Final answer
    x = 112,814.46

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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.