Home / 203,869.50-281,339.64-113,239

Finding the Fourth Proportional to 203,869.50, 281,339.64 and 113,239

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Solution

The fourth proportional to 203,869.50, 281,339.64 and 113,239 is: 156,269.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,869.50 : 281,339.64 = 113,239 : x
  2. Step 2: Convert to fraction form
    203,869.50/281,339.64 = 113,239/x
  3. Step 3: Cross multiply
    203,869.50x = 281,339.64 × 113,239
  4. Step 4: Simplify right side
    203,869.50x = 31,858,619,493.96
  5. Step 5: Solve for x
    x = 31,858,619,493.96/203,869.50
  6. Step 6: Final answer
    x = 156,269.67

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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.