Home / 202,839.12-279,920.07-112,195.26

Finding the Fourth Proportional to 202,839.12, 279,920.07 and 112,195.26

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Solution

The fourth proportional to 202,839.12, 279,920.07 and 112,195.26 is: 154,830.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,839.12 : 279,920.07 = 112,195.26 : x
  2. Step 2: Convert to fraction form
    202,839.12/279,920.07 = 112,195.26/x
  3. Step 3: Cross multiply
    202,839.12x = 279,920.07 × 112,195.26
  4. Step 4: Simplify right side
    202,839.12x = 31,405,705,032.87
  5. Step 5: Solve for x
    x = 31,405,705,032.87/202,839.12
  6. Step 6: Final answer
    x = 154,830.61

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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.