Home / 213,791.57-320,780.37-134,012.36

Finding the Fourth Proportional to 213,791.57, 320,780.37 and 134,012.36

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Solution

The fourth proportional to 213,791.57, 320,780.37 and 134,012.36 is: 201,076.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,791.57 : 320,780.37 = 134,012.36 : x
  2. Step 2: Convert to fraction form
    213,791.57/320,780.37 = 134,012.36/x
  3. Step 3: Cross multiply
    213,791.57x = 320,780.37 × 134,012.36
  4. Step 4: Simplify right side
    213,791.57x = 42,988,534,425.37
  5. Step 5: Solve for x
    x = 42,988,534,425.37/213,791.57
  6. Step 6: Final answer
    x = 201,076.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.