Home / 203,943.78-281,434.23-113,305.32

Finding the Fourth Proportional to 203,943.78, 281,434.23 and 113,305.32

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Solution

The fourth proportional to 203,943.78, 281,434.23 and 113,305.32 is: 156,356.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,943.78 : 281,434.23 = 113,305.32 : x
  2. Step 2: Convert to fraction form
    203,943.78/281,434.23 = 113,305.32/x
  3. Step 3: Cross multiply
    203,943.78x = 281,434.23 × 113,305.32
  4. Step 4: Simplify right side
    203,943.78x = 31,887,995,489.10
  5. Step 5: Solve for x
    x = 31,887,995,489.10/203,943.78
  6. Step 6: Final answer
    x = 156,356.79

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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.