Home / 154,287.20-231,464.64-65,616.56

Finding the Fourth Proportional to 154,287.20, 231,464.64 and 65,616.56

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Solution

The fourth proportional to 154,287.20, 231,464.64 and 65,616.56 is: 98,439.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,287.20 : 231,464.64 = 65,616.56 : x
  2. Step 2: Convert to fraction form
    154,287.20/231,464.64 = 65,616.56/x
  3. Step 3: Cross multiply
    154,287.20x = 231,464.64 × 65,616.56
  4. Step 4: Simplify right side
    154,287.20x = 15,187,913,438.44
  5. Step 5: Solve for x
    x = 15,187,913,438.44/154,287.20
  6. Step 6: Final answer
    x = 98,439.23

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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.