Home / 203,979.51-305,630.55-124,927.56

Finding the Fourth Proportional to 203,979.51, 305,630.55 and 124,927.56

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Solution

The fourth proportional to 203,979.51, 305,630.55 and 124,927.56 is: 187,183.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,979.51 : 305,630.55 = 124,927.56 : x
  2. Step 2: Convert to fraction form
    203,979.51/305,630.55 = 124,927.56/x
  3. Step 3: Cross multiply
    203,979.51x = 305,630.55 × 124,927.56
  4. Step 4: Simplify right side
    203,979.51x = 38,181,678,872.96
  5. Step 5: Solve for x
    x = 38,181,678,872.96/203,979.51
  6. Step 6: Final answer
    x = 187,183.89

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1.5x scale

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.