Home / 198,982.70-274,582.25-112,943.43

Finding the Fourth Proportional to 198,982.70, 274,582.25 and 112,943.43

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Solution

The fourth proportional to 198,982.70, 274,582.25 and 112,943.43 is: 155,854.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,982.70 : 274,582.25 = 112,943.43 : x
  2. Step 2: Convert to fraction form
    198,982.70/274,582.25 = 112,943.43/x
  3. Step 3: Cross multiply
    198,982.70x = 274,582.25 × 112,943.43
  4. Step 4: Simplify right side
    198,982.70x = 31,012,261,132.12
  5. Step 5: Solve for x
    x = 31,012,261,132.12/198,982.70
  6. Step 6: Final answer
    x = 155,854.06

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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.