Home / 281,540.16-422,311.44-81,861.36

Finding the Fourth Proportional to 281,540.16, 422,311.44 and 81,861.36

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Solution

The fourth proportional to 281,540.16, 422,311.44 and 81,861.36 is: 122,792.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,540.16 : 422,311.44 = 81,861.36 : x
  2. Step 2: Convert to fraction form
    281,540.16/422,311.44 = 81,861.36/x
  3. Step 3: Cross multiply
    281,540.16x = 422,311.44 × 81,861.36
  4. Step 4: Simplify right side
    281,540.16x = 34,570,988,821.96
  5. Step 5: Solve for x
    x = 34,570,988,821.96/281,540.16
  6. Step 6: Final answer
    x = 122,792.39

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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.