Home / 185,811.20-278,716.80-156,942.80

Finding the Fourth Proportional to 185,811.20, 278,716.80 and 156,942.80

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Solution

The fourth proportional to 185,811.20, 278,716.80 and 156,942.80 is: 235,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,811.20 : 278,716.80 = 156,942.80 : x
  2. Step 2: Convert to fraction form
    185,811.20/278,716.80 = 156,942.80/x
  3. Step 3: Cross multiply
    185,811.20x = 278,716.80 × 156,942.80
  4. Step 4: Simplify right side
    185,811.20x = 43,742,594,999.04
  5. Step 5: Solve for x
    x = 43,742,594,999.04/185,811.20
  6. Step 6: Final answer
    x = 235,414.20

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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.