Home / 120,619.82-180,930.24-50,449.94

Finding the Fourth Proportional to 120,619.82, 180,930.24 and 50,449.94

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Solution

The fourth proportional to 120,619.82, 180,930.24 and 50,449.94 is: 75,675.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,619.82 : 180,930.24 = 50,449.94 : x
  2. Step 2: Convert to fraction form
    120,619.82/180,930.24 = 50,449.94/x
  3. Step 3: Cross multiply
    120,619.82x = 180,930.24 × 50,449.94
  4. Step 4: Simplify right side
    120,619.82x = 9,127,919,752.19
  5. Step 5: Solve for x
    x = 9,127,919,752.19/120,619.82
  6. Step 6: Final answer
    x = 75,675.12

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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.