Home / 220,185.15-303,850.32-129,546.96

Finding the Fourth Proportional to 220,185.15, 303,850.32 and 129,546.96

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Solution

The fourth proportional to 220,185.15, 303,850.32 and 129,546.96 is: 178,771.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,185.15 : 303,850.32 = 129,546.96 : x
  2. Step 2: Convert to fraction form
    220,185.15/303,850.32 = 129,546.96/x
  3. Step 3: Cross multiply
    220,185.15x = 303,850.32 × 129,546.96
  4. Step 4: Simplify right side
    220,185.15x = 39,362,885,251.03
  5. Step 5: Solve for x
    x = 39,362,885,251.03/220,185.15
  6. Step 6: Final answer
    x = 178,771.75

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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.