Home / 99,468.20-149,203.89-55,375.22

Finding the Fourth Proportional to 99,468.20, 149,203.89 and 55,375.22

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Solution

The fourth proportional to 99,468.20, 149,203.89 and 55,375.22 is: 83,063.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,468.20 : 149,203.89 = 55,375.22 : x
  2. Step 2: Convert to fraction form
    99,468.20/149,203.89 = 55,375.22/x
  3. Step 3: Cross multiply
    99,468.20x = 149,203.89 × 55,375.22
  4. Step 4: Simplify right side
    99,468.20x = 8,262,198,606.62
  5. Step 5: Solve for x
    x = 8,262,198,606.62/99,468.20
  6. Step 6: Final answer
    x = 83,063.72

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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.