Home / 198,626.49-274,129.79-112,599.48

Finding the Fourth Proportional to 198,626.49, 274,129.79 and 112,599.48

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Solution

The fourth proportional to 198,626.49, 274,129.79 and 112,599.48 is: 155,401.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,626.49 : 274,129.79 = 112,599.48 : x
  2. Step 2: Convert to fraction form
    198,626.49/274,129.79 = 112,599.48/x
  3. Step 3: Cross multiply
    198,626.49x = 274,129.79 × 112,599.48
  4. Step 4: Simplify right side
    198,626.49x = 30,866,871,243.51
  5. Step 5: Solve for x
    x = 30,866,871,243.51/198,626.49
  6. Step 6: Final answer
    x = 155,401.58

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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.