Home / 281,879.38-422,774.05-82,153.02

Finding the Fourth Proportional to 281,879.38, 422,774.05 and 82,153.02

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Solution

The fourth proportional to 281,879.38, 422,774.05 and 82,153.02 is: 123,216.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,879.38 : 422,774.05 = 82,153.02 : x
  2. Step 2: Convert to fraction form
    281,879.38/422,774.05 = 82,153.02/x
  3. Step 3: Cross multiply
    281,879.38x = 422,774.05 × 82,153.02
  4. Step 4: Simplify right side
    281,879.38x = 34,732,164,985.13
  5. Step 5: Solve for x
    x = 34,732,164,985.13/281,879.38
  6. Step 6: Final answer
    x = 123,216.41

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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.