Home / 198,788.31-274,325.03-108,145.06

Finding the Fourth Proportional to 198,788.31, 274,325.03 and 108,145.06

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Solution

The fourth proportional to 198,788.31, 274,325.03 and 108,145.06 is: 149,238.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,788.31 : 274,325.03 = 108,145.06 : x
  2. Step 2: Convert to fraction form
    198,788.31/274,325.03 = 108,145.06/x
  3. Step 3: Cross multiply
    198,788.31x = 274,325.03 × 108,145.06
  4. Step 4: Simplify right side
    198,788.31x = 29,666,896,007.86
  5. Step 5: Solve for x
    x = 29,666,896,007.86/198,788.31
  6. Step 6: Final answer
    x = 149,238.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.