Home / 202,101.62-278,933.29-121,573.58

Finding the Fourth Proportional to 202,101.62, 278,933.29 and 121,573.58

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Solution

The fourth proportional to 202,101.62, 278,933.29 and 121,573.58 is: 167,791.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,101.62 : 278,933.29 = 121,573.58 : x
  2. Step 2: Convert to fraction form
    202,101.62/278,933.29 = 121,573.58/x
  3. Step 3: Cross multiply
    202,101.62x = 278,933.29 × 121,573.58
  4. Step 4: Simplify right side
    202,101.62x = 33,910,916,947.88
  5. Step 5: Solve for x
    x = 33,910,916,947.88/202,101.62
  6. Step 6: Final answer
    x = 167,791.42

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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.