Home / 221,093.75-305,158.62-140,505.56

Finding the Fourth Proportional to 221,093.75, 305,158.62 and 140,505.56

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Solution

The fourth proportional to 221,093.75, 305,158.62 and 140,505.56 is: 193,928.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,093.75 : 305,158.62 = 140,505.56 : x
  2. Step 2: Convert to fraction form
    221,093.75/305,158.62 = 140,505.56/x
  3. Step 3: Cross multiply
    221,093.75x = 305,158.62 × 140,505.56
  4. Step 4: Simplify right side
    221,093.75x = 42,876,482,791.93
  5. Step 5: Solve for x
    x = 42,876,482,791.93/221,093.75
  6. Step 6: Final answer
    x = 193,928.97

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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.