Home / 190,867.70-263,404.05-105,986.18

Finding the Fourth Proportional to 190,867.70, 263,404.05 and 105,986.18

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Solution

The fourth proportional to 190,867.70, 263,404.05 and 105,986.18 is: 146,264.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,867.70 : 263,404.05 = 105,986.18 : x
  2. Step 2: Convert to fraction form
    190,867.70/263,404.05 = 105,986.18/x
  3. Step 3: Cross multiply
    190,867.70x = 263,404.05 × 105,986.18
  4. Step 4: Simplify right side
    190,867.70x = 27,917,189,056.03
  5. Step 5: Solve for x
    x = 27,917,189,056.03/190,867.70
  6. Step 6: Final answer
    x = 146,264.61

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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.