Home / 190,861.20-263,395.08-105,979.68

Finding the Fourth Proportional to 190,861.20, 263,395.08 and 105,979.68

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Solution

The fourth proportional to 190,861.20, 263,395.08 and 105,979.68 is: 146,255.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,861.20 : 263,395.08 = 105,979.68 : x
  2. Step 2: Convert to fraction form
    190,861.20/263,395.08 = 105,979.68/x
  3. Step 3: Cross multiply
    190,861.20x = 263,395.08 × 105,979.68
  4. Step 4: Simplify right side
    190,861.20x = 27,914,526,291.97
  5. Step 5: Solve for x
    x = 27,914,526,291.97/190,861.20
  6. Step 6: Final answer
    x = 146,255.64

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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.