Home / 115,839.36-173,747.88-36,939.60

Finding the Fourth Proportional to 115,839.36, 173,747.88 and 36,939.60

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Solution

The fourth proportional to 115,839.36, 173,747.88 and 36,939.60 is: 55,405.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,839.36 : 173,747.88 = 36,939.60 : x
  2. Step 2: Convert to fraction form
    115,839.36/173,747.88 = 36,939.60/x
  3. Step 3: Cross multiply
    115,839.36x = 173,747.88 × 36,939.60
  4. Step 4: Simplify right side
    115,839.36x = 6,418,177,188.05
  5. Step 5: Solve for x
    x = 6,418,177,188.05/115,839.36
  6. Step 6: Final answer
    x = 55,405.84

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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.