Home / 190,524.36-262,919.70-105,640.68

Finding the Fourth Proportional to 190,524.36, 262,919.70 and 105,640.68

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Solution

The fourth proportional to 190,524.36, 262,919.70 and 105,640.68 is: 145,781.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,524.36 : 262,919.70 = 105,640.68 : x
  2. Step 2: Convert to fraction form
    190,524.36/262,919.70 = 105,640.68/x
  3. Step 3: Cross multiply
    190,524.36x = 262,919.70 × 105,640.68
  4. Step 4: Simplify right side
    190,524.36x = 27,775,015,893.40
  5. Step 5: Solve for x
    x = 27,775,015,893.40/190,524.36
  6. Step 6: Final answer
    x = 145,781.97

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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.