Home / 198,739.36-274,260.12-113,856.76

Finding the Fourth Proportional to 198,739.36, 274,260.12 and 113,856.76

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Solution

The fourth proportional to 198,739.36, 274,260.12 and 113,856.76 is: 157,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,739.36 : 274,260.12 = 113,856.76 : x
  2. Step 2: Convert to fraction form
    198,739.36/274,260.12 = 113,856.76/x
  3. Step 3: Cross multiply
    198,739.36x = 274,260.12 × 113,856.76
  4. Step 4: Simplify right side
    198,739.36x = 31,226,368,660.41
  5. Step 5: Solve for x
    x = 31,226,368,660.41/198,739.36
  6. Step 6: Final answer
    x = 157,122.22

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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.