Home / 231,788.25-319,831.25-135,008.03

Finding the Fourth Proportional to 231,788.25, 319,831.25 and 135,008.03

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Solution

The fourth proportional to 231,788.25, 319,831.25 and 135,008.03 is: 186,289.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,788.25 : 319,831.25 = 135,008.03 : x
  2. Step 2: Convert to fraction form
    231,788.25/319,831.25 = 135,008.03/x
  3. Step 3: Cross multiply
    231,788.25x = 319,831.25 × 135,008.03
  4. Step 4: Simplify right side
    231,788.25x = 43,179,788,025.54
  5. Step 5: Solve for x
    x = 43,179,788,025.54/231,788.25
  6. Step 6: Final answer
    x = 186,289.80

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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.