Home / 281,886.66-422,789.00-82,153.43

Finding the Fourth Proportional to 281,886.66, 422,789.00 and 82,153.43

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Solution

The fourth proportional to 281,886.66, 422,789.00 and 82,153.43 is: 123,218.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,886.66 : 422,789.00 = 82,153.43 : x
  2. Step 2: Convert to fraction form
    281,886.66/422,789.00 = 82,153.43/x
  3. Step 3: Cross multiply
    281,886.66x = 422,789.00 × 82,153.43
  4. Step 4: Simplify right side
    281,886.66x = 34,733,563,991.56
  5. Step 5: Solve for x
    x = 34,733,563,991.56/281,886.66
  6. Step 6: Final answer
    x = 123,218.19

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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.