Home / 202,551.51-279,517.19-111,911.43

Finding the Fourth Proportional to 202,551.51, 279,517.19 and 111,911.43

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Solution

The fourth proportional to 202,551.51, 279,517.19 and 111,911.43 is: 154,435.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,551.51 : 279,517.19 = 111,911.43 : x
  2. Step 2: Convert to fraction form
    202,551.51/279,517.19 = 111,911.43/x
  3. Step 3: Cross multiply
    202,551.51x = 279,517.19 × 111,911.43
  4. Step 4: Simplify right side
    202,551.51x = 31,281,167,882.92
  5. Step 5: Solve for x
    x = 31,281,167,882.92/202,551.51
  6. Step 6: Final answer
    x = 154,435.62

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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.