Home / 190,633.19-263,105.34-105,777.59

Finding the Fourth Proportional to 190,633.19, 263,105.34 and 105,777.59

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Solution

The fourth proportional to 190,633.19, 263,105.34 and 105,777.59 is: 145,990.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,633.19 : 263,105.34 = 105,777.59 : x
  2. Step 2: Convert to fraction form
    190,633.19/263,105.34 = 105,777.59/x
  3. Step 3: Cross multiply
    190,633.19x = 263,105.34 × 105,777.59
  4. Step 4: Simplify right side
    190,633.19x = 27,830,648,781.33
  5. Step 5: Solve for x
    x = 27,830,648,781.33/190,633.19
  6. Step 6: Final answer
    x = 145,990.57

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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.