Home / 203,770.50-281,190.33-113,128.26

Finding the Fourth Proportional to 203,770.50, 281,190.33 and 113,128.26

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Solution

The fourth proportional to 203,770.50, 281,190.33 and 113,128.26 is: 156,109.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,770.50 : 281,190.33 = 113,128.26 : x
  2. Step 2: Convert to fraction form
    203,770.50/281,190.33 = 113,128.26/x
  3. Step 3: Cross multiply
    203,770.50x = 281,190.33 × 113,128.26
  4. Step 4: Simplify right side
    203,770.50x = 31,810,572,761.73
  5. Step 5: Solve for x
    x = 31,810,572,761.73/203,770.50
  6. Step 6: Final answer
    x = 156,109.80

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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.