Home / 235,429.20-352,836.60-109,054.80

Finding the Fourth Proportional to 235,429.20, 352,836.60 and 109,054.80

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Solution

The fourth proportional to 235,429.20, 352,836.60 and 109,054.80 is: 163,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,429.20 : 352,836.60 = 109,054.80 : x
  2. Step 2: Convert to fraction form
    235,429.20/352,836.60 = 109,054.80/x
  3. Step 3: Cross multiply
    235,429.20x = 352,836.60 × 109,054.80
  4. Step 4: Simplify right side
    235,429.20x = 38,478,524,845.68
  5. Step 5: Solve for x
    x = 38,478,524,845.68/235,429.20
  6. Step 6: Final answer
    x = 163,439.90

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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.