Home / 135,771.45-203,591.40-79,629.94

Finding the Fourth Proportional to 135,771.45, 203,591.40 and 79,629.94

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Solution

The fourth proportional to 135,771.45, 203,591.40 and 79,629.94 is: 119,406.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,771.45 : 203,591.40 = 79,629.94 : x
  2. Step 2: Convert to fraction form
    135,771.45/203,591.40 = 79,629.94/x
  3. Step 3: Cross multiply
    135,771.45x = 203,591.40 × 79,629.94
  4. Step 4: Simplify right side
    135,771.45x = 16,211,970,966.52
  5. Step 5: Solve for x
    x = 16,211,970,966.52/135,771.45
  6. Step 6: Final answer
    x = 119,406.33

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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.