Home / 220,090.58-303,726.27-129,450.38

Finding the Fourth Proportional to 220,090.58, 303,726.27 and 129,450.38

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Solution

The fourth proportional to 220,090.58, 303,726.27 and 129,450.38 is: 178,642.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,090.58 : 303,726.27 = 129,450.38 : x
  2. Step 2: Convert to fraction form
    220,090.58/303,726.27 = 129,450.38/x
  3. Step 3: Cross multiply
    220,090.58x = 303,726.27 × 129,450.38
  4. Step 4: Simplify right side
    220,090.58x = 39,317,481,067.48
  5. Step 5: Solve for x
    x = 39,317,481,067.48/220,090.58
  6. Step 6: Final answer
    x = 178,642.27

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1.5x scale

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.