Home / 102,961.20-154,528.20-50,415.60

Finding the Fourth Proportional to 102,961.20, 154,528.20 and 50,415.60

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Solution

The fourth proportional to 102,961.20, 154,528.20 and 50,415.60 is: 75,665.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,961.20 : 154,528.20 = 50,415.60 : x
  2. Step 2: Convert to fraction form
    102,961.20/154,528.20 = 50,415.60/x
  3. Step 3: Cross multiply
    102,961.20x = 154,528.20 × 50,415.60
  4. Step 4: Simplify right side
    102,961.20x = 7,790,631,919.92
  5. Step 5: Solve for x
    x = 7,790,631,919.92/102,961.20
  6. Step 6: Final answer
    x = 75,665.71

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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.