Home / 149,591.39-206,437.11-81,609.44

Finding the Fourth Proportional to 149,591.39, 206,437.11 and 81,609.44

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Solution

The fourth proportional to 149,591.39, 206,437.11 and 81,609.44 is: 112,621.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,591.39 : 206,437.11 = 81,609.44 : x
  2. Step 2: Convert to fraction form
    149,591.39/206,437.11 = 81,609.44/x
  3. Step 3: Cross multiply
    149,591.39x = 206,437.11 × 81,609.44
  4. Step 4: Simplify right side
    149,591.39x = 16,847,216,942.32
  5. Step 5: Solve for x
    x = 16,847,216,942.32/149,591.39
  6. Step 6: Final answer
    x = 112,621.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.