Home / 133,233.08-183,853.82-72,791.69

Finding the Fourth Proportional to 133,233.08, 183,853.82 and 72,791.69

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Solution

The fourth proportional to 133,233.08, 183,853.82 and 72,791.69 is: 100,448.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,233.08 : 183,853.82 = 72,791.69 : x
  2. Step 2: Convert to fraction form
    133,233.08/183,853.82 = 72,791.69/x
  3. Step 3: Cross multiply
    133,233.08x = 183,853.82 × 72,791.69
  4. Step 4: Simplify right side
    133,233.08x = 13,383,030,912.37
  5. Step 5: Solve for x
    x = 13,383,030,912.37/133,233.08
  6. Step 6: Final answer
    x = 100,448.26

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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.