Home / 154,286.43-231,277.83-90,163.19

Finding the Fourth Proportional to 154,286.43, 231,277.83 and 90,163.19

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Solution

The fourth proportional to 154,286.43, 231,277.83 and 90,163.19 is: 135,156.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,286.43 : 231,277.83 = 90,163.19 : x
  2. Step 2: Convert to fraction form
    154,286.43/231,277.83 = 90,163.19/x
  3. Step 3: Cross multiply
    154,286.43x = 231,277.83 × 90,163.19
  4. Step 4: Simplify right side
    154,286.43x = 20,852,746,700.62
  5. Step 5: Solve for x
    x = 20,852,746,700.62/154,286.43
  6. Step 6: Final answer
    x = 135,156.06

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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.