Home / 190,879.81-263,414.61-105,996.87

Finding the Fourth Proportional to 190,879.81, 263,414.61 and 105,996.87

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Solution

The fourth proportional to 190,879.81, 263,414.61 and 105,996.87 is: 146,275.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,879.81 : 263,414.61 = 105,996.87 : x
  2. Step 2: Convert to fraction form
    190,879.81/263,414.61 = 105,996.87/x
  3. Step 3: Cross multiply
    190,879.81x = 263,414.61 × 105,996.87
  4. Step 4: Simplify right side
    190,879.81x = 27,921,124,172.27
  5. Step 5: Solve for x
    x = 27,921,124,172.27/190,879.81
  6. Step 6: Final answer
    x = 146,275.94

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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.