Home / 251,831.79-347,517.03-137,107.95

Finding the Fourth Proportional to 251,831.79, 347,517.03 and 137,107.95

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Solution

The fourth proportional to 251,831.79, 347,517.03 and 137,107.95 is: 189,203.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,831.79 : 347,517.03 = 137,107.95 : x
  2. Step 2: Convert to fraction form
    251,831.79/347,517.03 = 137,107.95/x
  3. Step 3: Cross multiply
    251,831.79x = 347,517.03 × 137,107.95
  4. Step 4: Simplify right side
    251,831.79x = 47,647,347,573.39
  5. Step 5: Solve for x
    x = 47,647,347,573.39/251,831.79
  6. Step 6: Final answer
    x = 189,203.07

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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.