Home / 137,736.76-206,715.84-71,196.38

Finding the Fourth Proportional to 137,736.76, 206,715.84 and 71,196.38

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Solution

The fourth proportional to 137,736.76, 206,715.84 and 71,196.38 is: 106,851.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,736.76 : 206,715.84 = 71,196.38 : x
  2. Step 2: Convert to fraction form
    137,736.76/206,715.84 = 71,196.38/x
  3. Step 3: Cross multiply
    137,736.76x = 206,715.84 × 71,196.38
  4. Step 4: Simplify right side
    137,736.76x = 14,717,419,496.66
  5. Step 5: Solve for x
    x = 14,717,419,496.66/137,736.76
  6. Step 6: Final answer
    x = 106,851.79

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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.