Home / 204,405.12-306,648.69-71,249.63

Finding the Fourth Proportional to 204,405.12, 306,648.69 and 71,249.63

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Solution

The fourth proportional to 204,405.12, 306,648.69 and 71,249.63 is: 106,888.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,405.12 : 306,648.69 = 71,249.63 : x
  2. Step 2: Convert to fraction form
    204,405.12/306,648.69 = 71,249.63/x
  3. Step 3: Cross multiply
    204,405.12x = 306,648.69 × 71,249.63
  4. Step 4: Simplify right side
    204,405.12x = 21,848,603,902.06
  5. Step 5: Solve for x
    x = 21,848,603,902.06/204,405.12
  6. Step 6: Final answer
    x = 106,888.73

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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.