Home / 120,904.20-181,010.70-108,462.60

Finding the Fourth Proportional to 120,904.20, 181,010.70 and 108,462.60

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Solution

The fourth proportional to 120,904.20, 181,010.70 and 108,462.60 is: 162,383.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,904.20 : 181,010.70 = 108,462.60 : x
  2. Step 2: Convert to fraction form
    120,904.20/181,010.70 = 108,462.60/x
  3. Step 3: Cross multiply
    120,904.20x = 181,010.70 × 108,462.60
  4. Step 4: Simplify right side
    120,904.20x = 19,632,891,149.82
  5. Step 5: Solve for x
    x = 19,632,891,149.82/120,904.20
  6. Step 6: Final answer
    x = 162,383.86

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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.