Home / 202,757.11-279,796.89-121,099.21

Finding the Fourth Proportional to 202,757.11, 279,796.89 and 121,099.21

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Solution

The fourth proportional to 202,757.11, 279,796.89 and 121,099.21 is: 167,112.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,757.11 : 279,796.89 = 121,099.21 : x
  2. Step 2: Convert to fraction form
    202,757.11/279,796.89 = 121,099.21/x
  3. Step 3: Cross multiply
    202,757.11x = 279,796.89 × 121,099.21
  4. Step 4: Simplify right side
    202,757.11x = 33,883,182,339.46
  5. Step 5: Solve for x
    x = 33,883,182,339.46/202,757.11
  6. Step 6: Final answer
    x = 167,112.18

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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.