Home / 149,231.16-205,932.78-82,158.84

Finding the Fourth Proportional to 149,231.16, 205,932.78 and 82,158.84

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Solution

The fourth proportional to 149,231.16, 205,932.78 and 82,158.84 is: 113,375.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,231.16 : 205,932.78 = 82,158.84 : x
  2. Step 2: Convert to fraction form
    149,231.16/205,932.78 = 82,158.84/x
  3. Step 3: Cross multiply
    149,231.16x = 205,932.78 × 82,158.84
  4. Step 4: Simplify right side
    149,231.16x = 16,919,198,322.78
  5. Step 5: Solve for x
    x = 16,919,198,322.78/149,231.16
  6. Step 6: Final answer
    x = 113,375.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.