Home / 114,785.13-158,331.99-78,912.87

Finding the Fourth Proportional to 114,785.13, 158,331.99 and 78,912.87

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Solution

The fourth proportional to 114,785.13, 158,331.99 and 78,912.87 is: 108,850.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,785.13 : 158,331.99 = 78,912.87 : x
  2. Step 2: Convert to fraction form
    114,785.13/158,331.99 = 78,912.87/x
  3. Step 3: Cross multiply
    114,785.13x = 158,331.99 × 78,912.87
  4. Step 4: Simplify right side
    114,785.13x = 12,494,431,743.71
  5. Step 5: Solve for x
    x = 12,494,431,743.71/114,785.13
  6. Step 6: Final answer
    x = 108,850.61

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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.