Home / 211,939.56-318,040.38-123,234.60

Finding the Fourth Proportional to 211,939.56, 318,040.38 and 123,234.60

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Solution

The fourth proportional to 211,939.56, 318,040.38 and 123,234.60 is: 184,928.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,939.56 : 318,040.38 = 123,234.60 : x
  2. Step 2: Convert to fraction form
    211,939.56/318,040.38 = 123,234.60/x
  3. Step 3: Cross multiply
    211,939.56x = 318,040.38 × 123,234.60
  4. Step 4: Simplify right side
    211,939.56x = 39,193,579,013.15
  5. Step 5: Solve for x
    x = 39,193,579,013.15/211,939.56
  6. Step 6: Final answer
    x = 184,928.09

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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.