Home / 101,344.12-152,081.46-54,629.56

Finding the Fourth Proportional to 101,344.12, 152,081.46 and 54,629.56

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Solution

The fourth proportional to 101,344.12, 152,081.46 and 54,629.56 is: 81,979.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,344.12 : 152,081.46 = 54,629.56 : x
  2. Step 2: Convert to fraction form
    101,344.12/152,081.46 = 54,629.56/x
  3. Step 3: Cross multiply
    101,344.12x = 152,081.46 × 54,629.56
  4. Step 4: Simplify right side
    101,344.12x = 8,308,143,243.96
  5. Step 5: Solve for x
    x = 8,308,143,243.96/101,344.12
  6. Step 6: Final answer
    x = 81,979.53

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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.