Home / 203,919.32-305,983.92-91,677.44

Finding the Fourth Proportional to 203,919.32, 305,983.92 and 91,677.44

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Solution

The fourth proportional to 203,919.32, 305,983.92 and 91,677.44 is: 137,563.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,919.32 : 305,983.92 = 91,677.44 : x
  2. Step 2: Convert to fraction form
    203,919.32/305,983.92 = 91,677.44/x
  3. Step 3: Cross multiply
    203,919.32x = 305,983.92 × 91,677.44
  4. Step 4: Simplify right side
    203,919.32x = 28,051,822,466.76
  5. Step 5: Solve for x
    x = 28,051,822,466.76/203,919.32
  6. Step 6: Final answer
    x = 137,563.34

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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.