Home / 133,286.42-199,960.89-91,186.32

Finding the Fourth Proportional to 133,286.42, 199,960.89 and 91,186.32

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Solution

The fourth proportional to 133,286.42, 199,960.89 and 91,186.32 is: 136,800.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,286.42 : 199,960.89 = 91,186.32 : x
  2. Step 2: Convert to fraction form
    133,286.42/199,960.89 = 91,186.32/x
  3. Step 3: Cross multiply
    133,286.42x = 199,960.89 × 91,186.32
  4. Step 4: Simplify right side
    133,286.42x = 18,233,697,247.09
  5. Step 5: Solve for x
    x = 18,233,697,247.09/133,286.42
  6. Step 6: Final answer
    x = 136,800.87

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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.