Home / 185,986.58-278,973.72-80,805.55

Finding the Fourth Proportional to 185,986.58, 278,973.72 and 80,805.55

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Solution

The fourth proportional to 185,986.58, 278,973.72 and 80,805.55 is: 121,205.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,986.58 : 278,973.72 = 80,805.55 : x
  2. Step 2: Convert to fraction form
    185,986.58/278,973.72 = 80,805.55/x
  3. Step 3: Cross multiply
    185,986.58x = 278,973.72 × 80,805.55
  4. Step 4: Simplify right side
    185,986.58x = 22,542,624,705.79
  5. Step 5: Solve for x
    x = 22,542,624,705.79/185,986.58
  6. Step 6: Final answer
    x = 121,205.65

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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.