Home / 198,819.36-274,472.37-153,395.28

Finding the Fourth Proportional to 198,819.36, 274,472.37 and 153,395.28

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Solution

The fourth proportional to 198,819.36, 274,472.37 and 153,395.28 is: 211,763.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,819.36 : 274,472.37 = 153,395.28 : x
  2. Step 2: Convert to fraction form
    198,819.36/274,472.37 = 153,395.28/x
  3. Step 3: Cross multiply
    198,819.36x = 274,472.37 × 153,395.28
  4. Step 4: Simplify right side
    198,819.36x = 42,102,766,048.41
  5. Step 5: Solve for x
    x = 42,102,766,048.41/198,819.36
  6. Step 6: Final answer
    x = 211,763.91

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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.