Home / 106,939.20-160,430.40-36,825.60

Finding the Fourth Proportional to 106,939.20, 160,430.40 and 36,825.60

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Solution

The fourth proportional to 106,939.20, 160,430.40 and 36,825.60 is: 55,245.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,939.20 : 160,430.40 = 36,825.60 : x
  2. Step 2: Convert to fraction form
    106,939.20/160,430.40 = 36,825.60/x
  3. Step 3: Cross multiply
    106,939.20x = 160,430.40 × 36,825.60
  4. Step 4: Simplify right side
    106,939.20x = 5,907,945,738.24
  5. Step 5: Solve for x
    x = 5,907,945,738.24/106,939.20
  6. Step 6: Final answer
    x = 55,245.84

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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.