Home / 190,638.44-263,112.59-105,782.84

Finding the Fourth Proportional to 190,638.44, 263,112.59 and 105,782.84

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Solution

The fourth proportional to 190,638.44, 263,112.59 and 105,782.84 is: 145,997.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,638.44 : 263,112.59 = 105,782.84 : x
  2. Step 2: Convert to fraction form
    190,638.44/263,112.59 = 105,782.84/x
  3. Step 3: Cross multiply
    190,638.44x = 263,112.59 × 105,782.84
  4. Step 4: Simplify right side
    190,638.44x = 27,832,796,481.04
  5. Step 5: Solve for x
    x = 27,832,796,481.04/190,638.44
  6. Step 6: Final answer
    x = 145,997.82

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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.