Home / 203,826.96-305,407.48-123,889.36

Finding the Fourth Proportional to 203,826.96, 305,407.48 and 123,889.36

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Solution

The fourth proportional to 203,826.96, 305,407.48 and 123,889.36 is: 185,631.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,826.96 : 305,407.48 = 123,889.36 : x
  2. Step 2: Convert to fraction form
    203,826.96/305,407.48 = 123,889.36/x
  3. Step 3: Cross multiply
    203,826.96x = 305,407.48 × 123,889.36
  4. Step 4: Simplify right side
    203,826.96x = 37,836,737,236.41
  5. Step 5: Solve for x
    x = 37,836,737,236.41/203,826.96
  6. Step 6: Final answer
    x = 185,631.66

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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.