Home / 202,356.03-279,251.73-111,712.12

Finding the Fourth Proportional to 202,356.03, 279,251.73 and 111,712.12

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Solution

The fourth proportional to 202,356.03, 279,251.73 and 111,712.12 is: 154,162.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,356.03 : 279,251.73 = 111,712.12 : x
  2. Step 2: Convert to fraction form
    202,356.03/279,251.73 = 111,712.12/x
  3. Step 3: Cross multiply
    202,356.03x = 279,251.73 × 111,712.12
  4. Step 4: Simplify right side
    202,356.03x = 31,195,802,073.84
  5. Step 5: Solve for x
    x = 31,195,802,073.84/202,356.03
  6. Step 6: Final answer
    x = 154,162.95

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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.