Home / 198,981.94-274,581.22-112,942.68

Finding the Fourth Proportional to 198,981.94, 274,581.22 and 112,942.68

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Solution

The fourth proportional to 198,981.94, 274,581.22 and 112,942.68 is: 155,853.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,981.94 : 274,581.22 = 112,942.68 : x
  2. Step 2: Convert to fraction form
    198,981.94/274,581.22 = 112,942.68/x
  3. Step 3: Cross multiply
    198,981.94x = 274,581.22 × 112,942.68
  4. Step 4: Simplify right side
    198,981.94x = 31,011,938,864.47
  5. Step 5: Solve for x
    x = 31,011,938,864.47/198,981.94
  6. Step 6: Final answer
    x = 155,853.03

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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.