Home / 203,936.78-281,424.57-113,298.32

Finding the Fourth Proportional to 203,936.78, 281,424.57 and 113,298.32

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Solution

The fourth proportional to 203,936.78, 281,424.57 and 113,298.32 is: 156,347.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,936.78 : 281,424.57 = 113,298.32 : x
  2. Step 2: Convert to fraction form
    203,936.78/281,424.57 = 113,298.32/x
  3. Step 3: Cross multiply
    203,936.78x = 281,424.57 × 113,298.32
  4. Step 4: Simplify right side
    203,936.78x = 31,884,930,987.72
  5. Step 5: Solve for x
    x = 31,884,930,987.72/203,936.78
  6. Step 6: Final answer
    x = 156,347.13

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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.