Home / 120,850.11-181,336.50-54,276.66

Finding the Fourth Proportional to 120,850.11, 181,336.50 and 54,276.66

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Solution

The fourth proportional to 120,850.11, 181,336.50 and 54,276.66 is: 81,442.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,850.11 : 181,336.50 = 54,276.66 : x
  2. Step 2: Convert to fraction form
    120,850.11/181,336.50 = 54,276.66/x
  3. Step 3: Cross multiply
    120,850.11x = 181,336.50 × 54,276.66
  4. Step 4: Simplify right side
    120,850.11x = 9,842,339,556.09
  5. Step 5: Solve for x
    x = 9,842,339,556.09/120,850.11
  6. Step 6: Final answer
    x = 81,442.54

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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.