Home / 190,638.19-263,112.24-105,782.59

Finding the Fourth Proportional to 190,638.19, 263,112.24 and 105,782.59

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Solution

The fourth proportional to 190,638.19, 263,112.24 and 105,782.59 is: 145,997.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,638.19 : 263,112.24 = 105,782.59 : x
  2. Step 2: Convert to fraction form
    190,638.19/263,112.24 = 105,782.59/x
  3. Step 3: Cross multiply
    190,638.19x = 263,112.24 × 105,782.59
  4. Step 4: Simplify right side
    190,638.19x = 27,832,694,207.90
  5. Step 5: Solve for x
    x = 27,832,694,207.90/190,638.19
  6. Step 6: Final answer
    x = 145,997.47

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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.