Home / 190,811.58-263,306.78-105,921.96

Finding the Fourth Proportional to 190,811.58, 263,306.78 and 105,921.96

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Solution

The fourth proportional to 190,811.58, 263,306.78 and 105,921.96 is: 146,164.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,811.58 : 263,306.78 = 105,921.96 : x
  2. Step 2: Convert to fraction form
    190,811.58/263,306.78 = 105,921.96/x
  3. Step 3: Cross multiply
    190,811.58x = 263,306.78 × 105,921.96
  4. Step 4: Simplify right side
    190,811.58x = 27,889,970,218.89
  5. Step 5: Solve for x
    x = 27,889,970,218.89/190,811.58
  6. Step 6: Final answer
    x = 146,164.98

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1.5x scale

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.