Home / 133,237.14-199,756.86-80,634.12

Finding the Fourth Proportional to 133,237.14, 199,756.86 and 80,634.12

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Solution

The fourth proportional to 133,237.14, 199,756.86 and 80,634.12 is: 120,891.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,237.14 : 199,756.86 = 80,634.12 : x
  2. Step 2: Convert to fraction form
    133,237.14/199,756.86 = 80,634.12/x
  3. Step 3: Cross multiply
    133,237.14x = 199,756.86 × 80,634.12
  4. Step 4: Simplify right side
    133,237.14x = 16,107,218,620.06
  5. Step 5: Solve for x
    x = 16,107,218,620.06/133,237.14
  6. Step 6: Final answer
    x = 120,891.36

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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.