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Finding the Fourth Proportional to 133,165.54, 183,767.36 and 72,736.22

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Solution

The fourth proportional to 133,165.54, 183,767.36 and 72,736.22 is: 100,375.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,165.54 : 183,767.36 = 72,736.22 : x
  2. Step 2: Convert to fraction form
    133,165.54/183,767.36 = 72,736.22/x
  3. Step 3: Cross multiply
    133,165.54x = 183,767.36 × 72,736.22
  4. Step 4: Simplify right side
    133,165.54x = 13,366,543,221.52
  5. Step 5: Solve for x
    x = 13,366,543,221.52/133,165.54
  6. Step 6: Final answer
    x = 100,375.39

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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.