Home / 185,651.51-256,200.39-100,768.56

Finding the Fourth Proportional to 185,651.51, 256,200.39 and 100,768.56

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Solution

The fourth proportional to 185,651.51, 256,200.39 and 100,768.56 is: 139,061.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,651.51 : 256,200.39 = 100,768.56 : x
  2. Step 2: Convert to fraction form
    185,651.51/256,200.39 = 100,768.56/x
  3. Step 3: Cross multiply
    185,651.51x = 256,200.39 × 100,768.56
  4. Step 4: Simplify right side
    185,651.51x = 25,816,944,371.74
  5. Step 5: Solve for x
    x = 25,816,944,371.74/185,651.51
  6. Step 6: Final answer
    x = 139,061.33

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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.