Home / 190,789.50-263,276.32-105,899.88

Finding the Fourth Proportional to 190,789.50, 263,276.32 and 105,899.88

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Solution

The fourth proportional to 190,789.50, 263,276.32 and 105,899.88 is: 146,134.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,789.50 : 263,276.32 = 105,899.88 : x
  2. Step 2: Convert to fraction form
    190,789.50/263,276.32 = 105,899.88/x
  3. Step 3: Cross multiply
    190,789.50x = 263,276.32 × 105,899.88
  4. Step 4: Simplify right side
    190,789.50x = 27,880,930,694.84
  5. Step 5: Solve for x
    x = 27,880,930,694.84/190,789.50
  6. Step 6: Final answer
    x = 146,134.51

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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.