Home / 126,945.66-190,532.70-67,831.86

Finding the Fourth Proportional to 126,945.66, 190,532.70 and 67,831.86

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Solution

The fourth proportional to 126,945.66, 190,532.70 and 67,831.86 is: 101,808.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,945.66 : 190,532.70 = 67,831.86 : x
  2. Step 2: Convert to fraction form
    126,945.66/190,532.70 = 67,831.86/x
  3. Step 3: Cross multiply
    126,945.66x = 190,532.70 × 67,831.86
  4. Step 4: Simplify right side
    126,945.66x = 12,924,187,431.82
  5. Step 5: Solve for x
    x = 12,924,187,431.82/126,945.66
  6. Step 6: Final answer
    x = 101,808.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.