Home / 137,831.82-190,067.91-129,795.42

Finding the Fourth Proportional to 137,831.82, 190,067.91 and 129,795.42

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Solution

The fourth proportional to 137,831.82, 190,067.91 and 129,795.42 is: 178,985.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,831.82 : 190,067.91 = 129,795.42 : x
  2. Step 2: Convert to fraction form
    137,831.82/190,067.91 = 129,795.42/x
  3. Step 3: Cross multiply
    137,831.82x = 190,067.91 × 129,795.42
  4. Step 4: Simplify right side
    137,831.82x = 24,669,944,206.97
  5. Step 5: Solve for x
    x = 24,669,944,206.97/137,831.82
  6. Step 6: Final answer
    x = 178,985.84

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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.