Home / 133,219.45-183,843.33-72,791.41

Finding the Fourth Proportional to 133,219.45, 183,843.33 and 72,791.41

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Solution

The fourth proportional to 133,219.45, 183,843.33 and 72,791.41 is: 100,452.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,219.45 : 183,843.33 = 72,791.41 : x
  2. Step 2: Convert to fraction form
    133,219.45/183,843.33 = 72,791.41/x
  3. Step 3: Cross multiply
    133,219.45x = 183,843.33 × 72,791.41
  4. Step 4: Simplify right side
    133,219.45x = 13,382,215,209.80
  5. Step 5: Solve for x
    x = 13,382,215,209.80/133,219.45
  6. Step 6: Final answer
    x = 100,452.41

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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.