Home / 104,076.20-155,880.84-80,631.56

Finding the Fourth Proportional to 104,076.20, 155,880.84 and 80,631.56

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Solution

The fourth proportional to 104,076.20, 155,880.84 and 80,631.56 is: 120,766.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,076.20 : 155,880.84 = 80,631.56 : x
  2. Step 2: Convert to fraction form
    104,076.20/155,880.84 = 80,631.56/x
  3. Step 3: Cross multiply
    104,076.20x = 155,880.84 × 80,631.56
  4. Step 4: Simplify right side
    104,076.20x = 12,568,915,303.31
  5. Step 5: Solve for x
    x = 12,568,915,303.31/104,076.20
  6. Step 6: Final answer
    x = 120,766.47

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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.