Home / 121,076.36-181,612.58-54,469.38

Finding the Fourth Proportional to 121,076.36, 181,612.58 and 54,469.38

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Solution

The fourth proportional to 121,076.36, 181,612.58 and 54,469.38 is: 81,703.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,076.36 : 181,612.58 = 54,469.38 : x
  2. Step 2: Convert to fraction form
    121,076.36/181,612.58 = 54,469.38/x
  3. Step 3: Cross multiply
    121,076.36x = 181,612.58 × 54,469.38
  4. Step 4: Simplify right side
    121,076.36x = 9,892,324,632.80
  5. Step 5: Solve for x
    x = 9,892,324,632.80/121,076.36
  6. Step 6: Final answer
    x = 81,703.19

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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.