Home / 133,236.39-199,755.77-80,633.37

Finding the Fourth Proportional to 133,236.39, 199,755.77 and 80,633.37

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Solution

The fourth proportional to 133,236.39, 199,755.77 and 80,633.37 is: 120,890.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,236.39 : 199,755.77 = 80,633.37 : x
  2. Step 2: Convert to fraction form
    133,236.39/199,755.77 = 80,633.37/x
  3. Step 3: Cross multiply
    133,236.39x = 199,755.77 × 80,633.37
  4. Step 4: Simplify right side
    133,236.39x = 16,106,980,508.88
  5. Step 5: Solve for x
    x = 16,106,980,508.88/133,236.39
  6. Step 6: Final answer
    x = 120,890.25

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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.