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Finding the Fourth Proportional to 203,769, 281,188.26 and 113,126.76

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Solution

The fourth proportional to 203,769, 281,188.26 and 113,126.76 is: 156,107.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,769 : 281,188.26 = 113,126.76 : x
  2. Step 2: Convert to fraction form
    203,769/281,188.26 = 113,126.76/x
  3. Step 3: Cross multiply
    203,769x = 281,188.26 × 113,126.76
  4. Step 4: Simplify right side
    203,769x = 31,809,916,803.84
  5. Step 5: Solve for x
    x = 31,809,916,803.84/203,769
  6. Step 6: Final answer
    x = 156,107.73

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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.