Home / 123,831.28-170,887.17-67,242.66

Finding the Fourth Proportional to 123,831.28, 170,887.17 and 67,242.66

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Solution

The fourth proportional to 123,831.28, 170,887.17 and 67,242.66 is: 92,794.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,831.28 : 170,887.17 = 67,242.66 : x
  2. Step 2: Convert to fraction form
    123,831.28/170,887.17 = 67,242.66/x
  3. Step 3: Cross multiply
    123,831.28x = 170,887.17 × 67,242.66
  4. Step 4: Simplify right side
    123,831.28x = 11,490,907,103.77
  5. Step 5: Solve for x
    x = 11,490,907,103.77/123,831.28
  6. Step 6: Final answer
    x = 92,794.87

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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.