Home / 102,979.20-154,555.20-50,433.60

Finding the Fourth Proportional to 102,979.20, 154,555.20 and 50,433.60

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Solution

The fourth proportional to 102,979.20, 154,555.20 and 50,433.60 is: 75,692.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,979.20 : 154,555.20 = 50,433.60 : x
  2. Step 2: Convert to fraction form
    102,979.20/154,555.20 = 50,433.60/x
  3. Step 3: Cross multiply
    102,979.20x = 154,555.20 × 50,433.60
  4. Step 4: Simplify right side
    102,979.20x = 7,794,775,134.72
  5. Step 5: Solve for x
    x = 7,794,775,134.72/102,979.20
  6. Step 6: Final answer
    x = 75,692.71

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1.5x scale

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.