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Finding the Fourth Proportional to 135,996.40, 203,591.40 and 101,090.80

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Solution

The fourth proportional to 135,996.40, 203,591.40 and 101,090.80 is: 151,336.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,996.40 : 203,591.40 = 101,090.80 : x
  2. Step 2: Convert to fraction form
    135,996.40/203,591.40 = 101,090.80/x
  3. Step 3: Cross multiply
    135,996.40x = 203,591.40 × 101,090.80
  4. Step 4: Simplify right side
    135,996.40x = 20,581,217,499.12
  5. Step 5: Solve for x
    x = 20,581,217,499.12/135,996.40
  6. Step 6: Final answer
    x = 151,336.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.