Home / 206,131.56-284,517.54-121,275.96

Finding the Fourth Proportional to 206,131.56, 284,517.54 and 121,275.96

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Solution

The fourth proportional to 206,131.56, 284,517.54 and 121,275.96 is: 167,393.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,131.56 : 284,517.54 = 121,275.96 : x
  2. Step 2: Convert to fraction form
    206,131.56/284,517.54 = 121,275.96/x
  3. Step 3: Cross multiply
    206,131.56x = 284,517.54 × 121,275.96
  4. Step 4: Simplify right side
    206,131.56x = 34,505,137,800.34
  5. Step 5: Solve for x
    x = 34,505,137,800.34/206,131.56
  6. Step 6: Final answer
    x = 167,393.76

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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.