Home / 135,952.28-203,865-51,728.12

Finding the Fourth Proportional to 135,952.28, 203,865 and 51,728.12

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Solution

The fourth proportional to 135,952.28, 203,865 and 51,728.12 is: 77,568.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,952.28 : 203,865 = 51,728.12 : x
  2. Step 2: Convert to fraction form
    135,952.28/203,865 = 51,728.12/x
  3. Step 3: Cross multiply
    135,952.28x = 203,865 × 51,728.12
  4. Step 4: Simplify right side
    135,952.28x = 10,545,553,183.80
  5. Step 5: Solve for x
    x = 10,545,553,183.80/135,952.28
  6. Step 6: Final answer
    x = 77,568.05

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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.