Home / 120,903.72-181,331.97-114,902.61

Finding the Fourth Proportional to 120,903.72, 181,331.97 and 114,902.61

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Solution

The fourth proportional to 120,903.72, 181,331.97 and 114,902.61 is: 172,331.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,903.72 : 181,331.97 = 114,902.61 : x
  2. Step 2: Convert to fraction form
    120,903.72/181,331.97 = 114,902.61/x
  3. Step 3: Cross multiply
    120,903.72x = 181,331.97 × 114,902.61
  4. Step 4: Simplify right side
    120,903.72x = 20,835,516,629.44
  5. Step 5: Solve for x
    x = 20,835,516,629.44/120,903.72
  6. Step 6: Final answer
    x = 172,331.48

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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.