Home / 154,299.20-231,333.60-84,257.60

Finding the Fourth Proportional to 154,299.20, 231,333.60 and 84,257.60

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Solution

The fourth proportional to 154,299.20, 231,333.60 and 84,257.60 is: 126,323.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,299.20 : 231,333.60 = 84,257.60 : x
  2. Step 2: Convert to fraction form
    154,299.20/231,333.60 = 84,257.60/x
  3. Step 3: Cross multiply
    154,299.20x = 231,333.60 × 84,257.60
  4. Step 4: Simplify right side
    154,299.20x = 19,491,613,935.36
  5. Step 5: Solve for x
    x = 19,491,613,935.36/154,299.20
  6. Step 6: Final answer
    x = 126,323.49

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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.