Home / 191,778.20-287,559.30-73,453.40

Finding the Fourth Proportional to 191,778.20, 287,559.30 and 73,453.40

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Solution

The fourth proportional to 191,778.20, 287,559.30 and 73,453.40 is: 110,138.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,778.20 : 287,559.30 = 73,453.40 : x
  2. Step 2: Convert to fraction form
    191,778.20/287,559.30 = 73,453.40/x
  3. Step 3: Cross multiply
    191,778.20x = 287,559.30 × 73,453.40
  4. Step 4: Simplify right side
    191,778.20x = 21,122,208,286.62
  5. Step 5: Solve for x
    x = 21,122,208,286.62/191,778.20
  6. Step 6: Final answer
    x = 110,138.73

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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.