Home / 206,655.09-285,110.66-135,076.41

Finding the Fourth Proportional to 206,655.09, 285,110.66 and 135,076.41

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Solution

The fourth proportional to 206,655.09, 285,110.66 and 135,076.41 is: 186,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,655.09 : 285,110.66 = 135,076.41 : x
  2. Step 2: Convert to fraction form
    206,655.09/285,110.66 = 135,076.41/x
  3. Step 3: Cross multiply
    206,655.09x = 285,110.66 × 135,076.41
  4. Step 4: Simplify right side
    206,655.09x = 38,511,723,730.15
  5. Step 5: Solve for x
    x = 38,511,723,730.15/206,655.09
  6. Step 6: Final answer
    x = 186,357.49

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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.