Home / 190,633.82-263,106.20-105,778.22

Finding the Fourth Proportional to 190,633.82, 263,106.20 and 105,778.22

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Solution

The fourth proportional to 190,633.82, 263,106.20 and 105,778.22 is: 145,991.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,633.82 : 263,106.20 = 105,778.22 : x
  2. Step 2: Convert to fraction form
    190,633.82/263,106.20 = 105,778.22/x
  3. Step 3: Cross multiply
    190,633.82x = 263,106.20 × 105,778.22
  4. Step 4: Simplify right side
    190,633.82x = 27,830,904,455.88
  5. Step 5: Solve for x
    x = 27,830,904,455.88/190,633.82
  6. Step 6: Final answer
    x = 145,991.44

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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.