Home / 202,905.11-280,098.72-121,262.16

Finding the Fourth Proportional to 202,905.11, 280,098.72 and 121,262.16

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Solution

The fourth proportional to 202,905.11, 280,098.72 and 121,262.16 is: 167,395.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,905.11 : 280,098.72 = 121,262.16 : x
  2. Step 2: Convert to fraction form
    202,905.11/280,098.72 = 121,262.16/x
  3. Step 3: Cross multiply
    202,905.11x = 280,098.72 × 121,262.16
  4. Step 4: Simplify right side
    202,905.11x = 33,965,375,800.44
  5. Step 5: Solve for x
    x = 33,965,375,800.44/202,905.11
  6. Step 6: Final answer
    x = 167,395.37

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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.