Home / 198,664.65-274,149.66-108,020.67

Finding the Fourth Proportional to 198,664.65, 274,149.66 and 108,020.67

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Solution

The fourth proportional to 198,664.65, 274,149.66 and 108,020.67 is: 149,064.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,664.65 : 274,149.66 = 108,020.67 : x
  2. Step 2: Convert to fraction form
    198,664.65/274,149.66 = 108,020.67/x
  3. Step 3: Cross multiply
    198,664.65x = 274,149.66 × 108,020.67
  4. Step 4: Simplify right side
    198,664.65x = 29,613,829,953.47
  5. Step 5: Solve for x
    x = 29,613,829,953.47/198,664.65
  6. Step 6: Final answer
    x = 149,064.42

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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.