Home / 190,764.90-263,278.89-105,909.30

Finding the Fourth Proportional to 190,764.90, 263,278.89 and 105,909.30

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Solution

The fourth proportional to 190,764.90, 263,278.89 and 105,909.30 is: 146,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,764.90 : 263,278.89 = 105,909.30 : x
  2. Step 2: Convert to fraction form
    190,764.90/263,278.89 = 105,909.30/x
  3. Step 3: Cross multiply
    190,764.90x = 263,278.89 × 105,909.30
  4. Step 4: Simplify right side
    190,764.90x = 27,883,682,944.68
  5. Step 5: Solve for x
    x = 27,883,682,944.68/190,764.90
  6. Step 6: Final answer
    x = 146,167.79

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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.