Home / 190,622.57-263,067.75-105,739.70

Finding the Fourth Proportional to 190,622.57, 263,067.75 and 105,739.70

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Solution

The fourth proportional to 190,622.57, 263,067.75 and 105,739.70 is: 145,925.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,622.57 : 263,067.75 = 105,739.70 : x
  2. Step 2: Convert to fraction form
    190,622.57/263,067.75 = 105,739.70/x
  3. Step 3: Cross multiply
    190,622.57x = 263,067.75 × 105,739.70
  4. Step 4: Simplify right side
    190,622.57x = 27,816,703,649.34
  5. Step 5: Solve for x
    x = 27,816,703,649.34/190,622.57
  6. Step 6: Final answer
    x = 145,925.56

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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.