Home / 194,540.09-291,840.31-82,220.78

Finding the Fourth Proportional to 194,540.09, 291,840.31 and 82,220.78

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Solution

The fourth proportional to 194,540.09, 291,840.31 and 82,220.78 is: 123,343.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,540.09 : 291,840.31 = 82,220.78 : x
  2. Step 2: Convert to fraction form
    194,540.09/291,840.31 = 82,220.78/x
  3. Step 3: Cross multiply
    194,540.09x = 291,840.31 × 82,220.78
  4. Step 4: Simplify right side
    194,540.09x = 23,995,338,447.69
  5. Step 5: Solve for x
    x = 23,995,338,447.69/194,540.09
  6. Step 6: Final answer
    x = 123,343.92

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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.