Home / 203,939.10-306,103.23-125,207.10

Finding the Fourth Proportional to 203,939.10, 306,103.23 and 125,207.10

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Solution

The fourth proportional to 203,939.10, 306,103.23 and 125,207.10 is: 187,930.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,939.10 : 306,103.23 = 125,207.10 : x
  2. Step 2: Convert to fraction form
    203,939.10/306,103.23 = 125,207.10/x
  3. Step 3: Cross multiply
    203,939.10x = 306,103.23 × 125,207.10
  4. Step 4: Simplify right side
    203,939.10x = 38,326,297,728.93
  5. Step 5: Solve for x
    x = 38,326,297,728.93/203,939.10
  6. Step 6: Final answer
    x = 187,930.11

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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.