Home / 192,831.93-266,076.40-121,161.20

Finding the Fourth Proportional to 192,831.93, 266,076.40 and 121,161.20

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Solution

The fourth proportional to 192,831.93, 266,076.40 and 121,161.20 is: 167,182.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,831.93 : 266,076.40 = 121,161.20 : x
  2. Step 2: Convert to fraction form
    192,831.93/266,076.40 = 121,161.20/x
  3. Step 3: Cross multiply
    192,831.93x = 266,076.40 × 121,161.20
  4. Step 4: Simplify right side
    192,831.93x = 32,238,135,915.68
  5. Step 5: Solve for x
    x = 32,238,135,915.68/192,831.93
  6. Step 6: Final answer
    x = 167,182.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.