Home / 198,772.03-274,312.62-113,905.51

Finding the Fourth Proportional to 198,772.03, 274,312.62 and 113,905.51

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Solution

The fourth proportional to 198,772.03, 274,312.62 and 113,905.51 is: 157,193.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,772.03 : 274,312.62 = 113,905.51 : x
  2. Step 2: Convert to fraction form
    198,772.03/274,312.62 = 113,905.51/x
  3. Step 3: Cross multiply
    198,772.03x = 274,312.62 × 113,905.51
  4. Step 4: Simplify right side
    198,772.03x = 31,245,718,880.54
  5. Step 5: Solve for x
    x = 31,245,718,880.54/198,772.03
  6. Step 6: Final answer
    x = 157,193.74

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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.