Home / 154,237.20-231,874.20-131,427.60

Finding the Fourth Proportional to 154,237.20, 231,874.20 and 131,427.60

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Solution

The fourth proportional to 154,237.20, 231,874.20 and 131,427.60 is: 197,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,237.20 : 231,874.20 = 131,427.60 : x
  2. Step 2: Convert to fraction form
    154,237.20/231,874.20 = 131,427.60/x
  3. Step 3: Cross multiply
    154,237.20x = 231,874.20 × 131,427.60
  4. Step 4: Simplify right side
    154,237.20x = 30,474,669,607.92
  5. Step 5: Solve for x
    x = 30,474,669,607.92/154,237.20
  6. Step 6: Final answer
    x = 197,583.14

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1.5x scale

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.