Home / 120,980.22-181,469.73-31,022.54

Finding the Fourth Proportional to 120,980.22, 181,469.73 and 31,022.54

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Solution

The fourth proportional to 120,980.22, 181,469.73 and 31,022.54 is: 46,533.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,980.22 : 181,469.73 = 31,022.54 : x
  2. Step 2: Convert to fraction form
    120,980.22/181,469.73 = 31,022.54/x
  3. Step 3: Cross multiply
    120,980.22x = 181,469.73 × 31,022.54
  4. Step 4: Simplify right side
    120,980.22x = 5,629,650,934.03
  5. Step 5: Solve for x
    x = 5,629,650,934.03/120,980.22
  6. Step 6: Final answer
    x = 46,533.65

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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.