Home / 203,636.56-281,052.04-113,021.72

Finding the Fourth Proportional to 203,636.56, 281,052.04 and 113,021.72

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Solution

The fourth proportional to 203,636.56, 281,052.04 and 113,021.72 is: 155,988.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,636.56 : 281,052.04 = 113,021.72 : x
  2. Step 2: Convert to fraction form
    203,636.56/281,052.04 = 113,021.72/x
  3. Step 3: Cross multiply
    203,636.56x = 281,052.04 × 113,021.72
  4. Step 4: Simplify right side
    203,636.56x = 31,764,984,970.31
  5. Step 5: Solve for x
    x = 31,764,984,970.31/203,636.56
  6. Step 6: Final answer
    x = 155,988.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.