Home / 198,610.56-274,087.91-107,972.67

Finding the Fourth Proportional to 198,610.56, 274,087.91 and 107,972.67

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Solution

The fourth proportional to 198,610.56, 274,087.91 and 107,972.67 is: 149,005.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,610.56 : 274,087.91 = 107,972.67 : x
  2. Step 2: Convert to fraction form
    198,610.56/274,087.91 = 107,972.67/x
  3. Step 3: Cross multiply
    198,610.56x = 274,087.91 × 107,972.67
  4. Step 4: Simplify right side
    198,610.56x = 29,594,003,457.42
  5. Step 5: Solve for x
    x = 29,594,003,457.42/198,610.56
  6. Step 6: Final answer
    x = 149,005.19

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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.