Home / 203,934.78-281,421.81-113,296.32

Finding the Fourth Proportional to 203,934.78, 281,421.81 and 113,296.32

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Solution

The fourth proportional to 203,934.78, 281,421.81 and 113,296.32 is: 156,344.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,934.78 : 281,421.81 = 113,296.32 : x
  2. Step 2: Convert to fraction form
    203,934.78/281,421.81 = 113,296.32/x
  3. Step 3: Cross multiply
    203,934.78x = 281,421.81 × 113,296.32
  4. Step 4: Simplify right side
    203,934.78x = 31,884,055,440.74
  5. Step 5: Solve for x
    x = 31,884,055,440.74/203,934.78
  6. Step 6: Final answer
    x = 156,344.37

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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.