Home / 148,379.62-222,791.79-128,450.59

Finding the Fourth Proportional to 148,379.62, 222,791.79 and 128,450.59

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Solution

The fourth proportional to 148,379.62, 222,791.79 and 128,450.59 is: 192,868.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,379.62 : 222,791.79 = 128,450.59 : x
  2. Step 2: Convert to fraction form
    148,379.62/222,791.79 = 128,450.59/x
  3. Step 3: Cross multiply
    148,379.62x = 222,791.79 × 128,450.59
  4. Step 4: Simplify right side
    148,379.62x = 28,617,736,872.66
  5. Step 5: Solve for x
    x = 28,617,736,872.66/148,379.62
  6. Step 6: Final answer
    x = 192,868.38

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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.