Home / 206,431.43-284,853.78-120,367.49

Finding the Fourth Proportional to 206,431.43, 284,853.78 and 120,367.49

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Solution

The fourth proportional to 206,431.43, 284,853.78 and 120,367.49 is: 166,094.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,431.43 : 284,853.78 = 120,367.49 : x
  2. Step 2: Convert to fraction form
    206,431.43/284,853.78 = 120,367.49/x
  3. Step 3: Cross multiply
    206,431.43x = 284,853.78 × 120,367.49
  4. Step 4: Simplify right side
    206,431.43x = 34,287,133,091.34
  5. Step 5: Solve for x
    x = 34,287,133,091.34/206,431.43
  6. Step 6: Final answer
    x = 166,094.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.