Home / 198,772.06-274,312.65-113,905.54

Finding the Fourth Proportional to 198,772.06, 274,312.65 and 113,905.54

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Solution

The fourth proportional to 198,772.06, 274,312.65 and 113,905.54 is: 157,193.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,772.06 : 274,312.65 = 113,905.54 : x
  2. Step 2: Convert to fraction form
    198,772.06/274,312.65 = 113,905.54/x
  3. Step 3: Cross multiply
    198,772.06x = 274,312.65 × 113,905.54
  4. Step 4: Simplify right side
    198,772.06x = 31,245,730,527.08
  5. Step 5: Solve for x
    x = 31,245,730,527.08/198,772.06
  6. Step 6: Final answer
    x = 157,193.78

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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.