Home / 135,770.45-203,589.90-79,628.94

Finding the Fourth Proportional to 135,770.45, 203,589.90 and 79,628.94

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Solution

The fourth proportional to 135,770.45, 203,589.90 and 79,628.94 is: 119,404.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,770.45 : 203,589.90 = 79,628.94 : x
  2. Step 2: Convert to fraction form
    135,770.45/203,589.90 = 79,628.94/x
  3. Step 3: Cross multiply
    135,770.45x = 203,589.90 × 79,628.94
  4. Step 4: Simplify right side
    135,770.45x = 16,211,647,931.71
  5. Step 5: Solve for x
    x = 16,211,647,931.71/135,770.45
  6. Step 6: Final answer
    x = 119,404.84

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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.