Home / 203,715.36-281,126.22-113,072.40

Finding the Fourth Proportional to 203,715.36, 281,126.22 and 113,072.40

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Solution

The fourth proportional to 203,715.36, 281,126.22 and 113,072.40 is: 156,039.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,715.36 : 281,126.22 = 113,072.40 : x
  2. Step 2: Convert to fraction form
    203,715.36/281,126.22 = 113,072.40/x
  3. Step 3: Cross multiply
    203,715.36x = 281,126.22 × 113,072.40
  4. Step 4: Simplify right side
    203,715.36x = 31,787,616,398.33
  5. Step 5: Solve for x
    x = 31,787,616,398.33/203,715.36
  6. Step 6: Final answer
    x = 156,039.37

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1.5x scale

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.