Home / 135,626.20-203,439.30-65,512.60

Finding the Fourth Proportional to 135,626.20, 203,439.30 and 65,512.60

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Solution

The fourth proportional to 135,626.20, 203,439.30 and 65,512.60 is: 98,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,626.20 : 203,439.30 = 65,512.60 : x
  2. Step 2: Convert to fraction form
    135,626.20/203,439.30 = 65,512.60/x
  3. Step 3: Cross multiply
    135,626.20x = 203,439.30 × 65,512.60
  4. Step 4: Simplify right side
    135,626.20x = 13,327,837,485.18
  5. Step 5: Solve for x
    x = 13,327,837,485.18/135,626.20
  6. Step 6: Final answer
    x = 98,268.90

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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.