Home / 137,831.73-190,228.38-84,147.66

Finding the Fourth Proportional to 137,831.73, 190,228.38 and 84,147.66

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Solution

The fourth proportional to 137,831.73, 190,228.38 and 84,147.66 is: 116,136.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,831.73 : 190,228.38 = 84,147.66 : x
  2. Step 2: Convert to fraction form
    137,831.73/190,228.38 = 84,147.66/x
  3. Step 3: Cross multiply
    137,831.73x = 190,228.38 × 84,147.66
  4. Step 4: Simplify right side
    137,831.73x = 16,007,273,042.59
  5. Step 5: Solve for x
    x = 16,007,273,042.59/137,831.73
  6. Step 6: Final answer
    x = 116,136.34

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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.