Home / 236,231.48-325,993.55-128,803.61

Finding the Fourth Proportional to 236,231.48, 325,993.55 and 128,803.61

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Solution

The fourth proportional to 236,231.48, 325,993.55 and 128,803.61 is: 177,745.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,231.48 : 325,993.55 = 128,803.61 : x
  2. Step 2: Convert to fraction form
    236,231.48/325,993.55 = 128,803.61/x
  3. Step 3: Cross multiply
    236,231.48x = 325,993.55 × 128,803.61
  4. Step 4: Simplify right side
    236,231.48x = 41,989,143,802.73
  5. Step 5: Solve for x
    x = 41,989,143,802.73/236,231.48
  6. Step 6: Final answer
    x = 177,745.76

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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.