Home / 198,976.58-274,612.49-112,963.40

Finding the Fourth Proportional to 198,976.58, 274,612.49 and 112,963.40

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Solution

The fourth proportional to 198,976.58, 274,612.49 and 112,963.40 is: 155,903.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,976.58 : 274,612.49 = 112,963.40 : x
  2. Step 2: Convert to fraction form
    198,976.58/274,612.49 = 112,963.40/x
  3. Step 3: Cross multiply
    198,976.58x = 274,612.49 × 112,963.40
  4. Step 4: Simplify right side
    198,976.58x = 31,021,160,068.40
  5. Step 5: Solve for x
    x = 31,021,160,068.40/198,976.58
  6. Step 6: Final answer
    x = 155,903.58

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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.