Home / 202,949.09-280,109.36-122,389.73

Finding the Fourth Proportional to 202,949.09, 280,109.36 and 122,389.73

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Solution

The fourth proportional to 202,949.09, 280,109.36 and 122,389.73 is: 168,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,949.09 : 280,109.36 = 122,389.73 : x
  2. Step 2: Convert to fraction form
    202,949.09/280,109.36 = 122,389.73/x
  3. Step 3: Cross multiply
    202,949.09x = 280,109.36 × 122,389.73
  4. Step 4: Simplify right side
    202,949.09x = 34,282,508,208.27
  5. Step 5: Solve for x
    x = 34,282,508,208.27/202,949.09
  6. Step 6: Final answer
    x = 168,921.72

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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.