Home / 361,318.32-541,986.39-121,435.81

Finding the Fourth Proportional to 361,318.32, 541,986.39 and 121,435.81

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Solution

The fourth proportional to 361,318.32, 541,986.39 and 121,435.81 is: 182,156.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,318.32 : 541,986.39 = 121,435.81 : x
  2. Step 2: Convert to fraction form
    361,318.32/541,986.39 = 121,435.81/x
  3. Step 3: Cross multiply
    361,318.32x = 541,986.39 × 121,435.81
  4. Step 4: Simplify right side
    361,318.32x = 65,816,554,923.66
  5. Step 5: Solve for x
    x = 65,816,554,923.66/361,318.32
  6. Step 6: Final answer
    x = 182,156.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.