Home / 121,015.52-181,540.56-37,916

Finding the Fourth Proportional to 121,015.52, 181,540.56 and 37,916

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Solution

The fourth proportional to 121,015.52, 181,540.56 and 37,916 is: 56,879.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,015.52 : 181,540.56 = 37,916 : x
  2. Step 2: Convert to fraction form
    121,015.52/181,540.56 = 37,916/x
  3. Step 3: Cross multiply
    121,015.52x = 181,540.56 × 37,916
  4. Step 4: Simplify right side
    121,015.52x = 6,883,291,872.96
  5. Step 5: Solve for x
    x = 6,883,291,872.96/121,015.52
  6. Step 6: Final answer
    x = 56,879.41

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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.