Home / 190,716.48-263,186.28-105,831.72

Finding the Fourth Proportional to 190,716.48, 263,186.28 and 105,831.72

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Solution

The fourth proportional to 190,716.48, 263,186.28 and 105,831.72 is: 146,046.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,716.48 : 263,186.28 = 105,831.72 : x
  2. Step 2: Convert to fraction form
    190,716.48/263,186.28 = 105,831.72/x
  3. Step 3: Cross multiply
    190,716.48x = 263,186.28 × 105,831.72
  4. Step 4: Simplify right side
    190,716.48x = 27,853,456,692.80
  5. Step 5: Solve for x
    x = 27,853,456,692.80/190,716.48
  6. Step 6: Final answer
    x = 146,046.41

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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.