Home / 203,917.52-305,976.40-91,676.96

Finding the Fourth Proportional to 203,917.52, 305,976.40 and 91,676.96

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Solution

The fourth proportional to 203,917.52, 305,976.40 and 91,676.96 is: 137,560.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,917.52 : 305,976.40 = 91,676.96 : x
  2. Step 2: Convert to fraction form
    203,917.52/305,976.40 = 91,676.96/x
  3. Step 3: Cross multiply
    203,917.52x = 305,976.40 × 91,676.96
  4. Step 4: Simplify right side
    203,917.52x = 28,050,986,183.74
  5. Step 5: Solve for x
    x = 28,050,986,183.74/203,917.52
  6. Step 6: Final answer
    x = 137,560.45

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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.