Home / 126,890.88-190,305.13-55,831.36

Finding the Fourth Proportional to 126,890.88, 190,305.13 and 55,831.36

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Solution

The fourth proportional to 126,890.88, 190,305.13 and 55,831.36 is: 83,733.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,890.88 : 190,305.13 = 55,831.36 : x
  2. Step 2: Convert to fraction form
    126,890.88/190,305.13 = 55,831.36/x
  3. Step 3: Cross multiply
    126,890.88x = 190,305.13 × 55,831.36
  4. Step 4: Simplify right side
    126,890.88x = 10,624,994,222.88
  5. Step 5: Solve for x
    x = 10,624,994,222.88/126,890.88
  6. Step 6: Final answer
    x = 83,733.32

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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.