Home / 203,904.80-281,379.10-113,266.60

Finding the Fourth Proportional to 203,904.80, 281,379.10 and 113,266.60

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Solution

The fourth proportional to 203,904.80, 281,379.10 and 113,266.60 is: 156,302.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,904.80 : 281,379.10 = 113,266.60 : x
  2. Step 2: Convert to fraction form
    203,904.80/281,379.10 = 113,266.60/x
  3. Step 3: Cross multiply
    203,904.80x = 281,379.10 × 113,266.60
  4. Step 4: Simplify right side
    203,904.80x = 31,870,853,968.06
  5. Step 5: Solve for x
    x = 31,870,853,968.06/203,904.80
  6. Step 6: Final answer
    x = 156,302.62

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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.