Home / 206,178.03-284,520.87-121,300.56

Finding the Fourth Proportional to 206,178.03, 284,520.87 and 121,300.56

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Solution

The fourth proportional to 206,178.03, 284,520.87 and 121,300.56 is: 167,391.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,178.03 : 284,520.87 = 121,300.56 : x
  2. Step 2: Convert to fraction form
    206,178.03/284,520.87 = 121,300.56/x
  3. Step 3: Cross multiply
    206,178.03x = 284,520.87 × 121,300.56
  4. Step 4: Simplify right side
    206,178.03x = 34,512,540,862.69
  5. Step 5: Solve for x
    x = 34,512,540,862.69/206,178.03
  6. Step 6: Final answer
    x = 167,391.94

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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.