Home / 281,494.43-422,262.20-79,120.38

Finding the Fourth Proportional to 281,494.43, 422,262.20 and 79,120.38

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Solution

The fourth proportional to 281,494.43, 422,262.20 and 79,120.38 is: 118,686.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,494.43 : 422,262.20 = 79,120.38 : x
  2. Step 2: Convert to fraction form
    281,494.43/422,262.20 = 79,120.38/x
  3. Step 3: Cross multiply
    281,494.43x = 422,262.20 × 79,120.38
  4. Step 4: Simplify right side
    281,494.43x = 33,409,545,723.64
  5. Step 5: Solve for x
    x = 33,409,545,723.64/281,494.43
  6. Step 6: Final answer
    x = 118,686.35

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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.