Home / 154,040.80-231,061.20-135,961.60

Finding the Fourth Proportional to 154,040.80, 231,061.20 and 135,961.60

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Solution

The fourth proportional to 154,040.80, 231,061.20 and 135,961.60 is: 203,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,040.80 : 231,061.20 = 135,961.60 : x
  2. Step 2: Convert to fraction form
    154,040.80/231,061.20 = 135,961.60/x
  3. Step 3: Cross multiply
    154,040.80x = 231,061.20 × 135,961.60
  4. Step 4: Simplify right side
    154,040.80x = 31,415,450,449.92
  5. Step 5: Solve for x
    x = 31,415,450,449.92/154,040.80
  6. Step 6: Final answer
    x = 203,942.40

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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.