Home / 281,033.76-421,716.96-103,665.44

Finding the Fourth Proportional to 281,033.76, 421,716.96 and 103,665.44

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Solution

The fourth proportional to 281,033.76, 421,716.96 and 103,665.44 is: 155,559.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,033.76 : 421,716.96 = 103,665.44 : x
  2. Step 2: Convert to fraction form
    281,033.76/421,716.96 = 103,665.44/x
  3. Step 3: Cross multiply
    281,033.76x = 421,716.96 × 103,665.44
  4. Step 4: Simplify right side
    281,033.76x = 43,717,474,213.86
  5. Step 5: Solve for x
    x = 43,717,474,213.86/281,033.76
  6. Step 6: Final answer
    x = 155,559.51

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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.