Home / 154,544.52-231,816.78-84,385.56

Finding the Fourth Proportional to 154,544.52, 231,816.78 and 84,385.56

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Solution

The fourth proportional to 154,544.52, 231,816.78 and 84,385.56 is: 126,578.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,544.52 : 231,816.78 = 84,385.56 : x
  2. Step 2: Convert to fraction form
    154,544.52/231,816.78 = 84,385.56/x
  3. Step 3: Cross multiply
    154,544.52x = 231,816.78 × 84,385.56
  4. Step 4: Simplify right side
    154,544.52x = 19,561,988,797.70
  5. Step 5: Solve for x
    x = 19,561,988,797.70/154,544.52
  6. Step 6: Final answer
    x = 126,578.34

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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.