Home / 190,771.38-263,276.46-105,889.86

Finding the Fourth Proportional to 190,771.38, 263,276.46 and 105,889.86

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Solution

The fourth proportional to 190,771.38, 263,276.46 and 105,889.86 is: 146,134.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,771.38 : 263,276.46 = 105,889.86 : x
  2. Step 2: Convert to fraction form
    190,771.38/263,276.46 = 105,889.86/x
  3. Step 3: Cross multiply
    190,771.38x = 263,276.46 × 105,889.86
  4. Step 4: Simplify right side
    190,771.38x = 27,878,307,490.70
  5. Step 5: Solve for x
    x = 27,878,307,490.70/190,771.38
  6. Step 6: Final answer
    x = 146,134.64

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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.