Home / 99,891.87-149,815.32-28,799.18

Finding the Fourth Proportional to 99,891.87, 149,815.32 and 28,799.18

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Solution

The fourth proportional to 99,891.87, 149,815.32 and 28,799.18 is: 43,192.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,891.87 : 149,815.32 = 28,799.18 : x
  2. Step 2: Convert to fraction form
    99,891.87/149,815.32 = 28,799.18/x
  3. Step 3: Cross multiply
    99,891.87x = 149,815.32 × 28,799.18
  4. Step 4: Simplify right side
    99,891.87x = 4,314,558,367.44
  5. Step 5: Solve for x
    x = 4,314,558,367.44/99,891.87
  6. Step 6: Final answer
    x = 43,192.29

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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.