Home / 154,142.55-231,232.38-54,282.12

Finding the Fourth Proportional to 154,142.55, 231,232.38 and 54,282.12

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Solution

The fourth proportional to 154,142.55, 231,232.38 and 54,282.12 is: 81,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,142.55 : 231,232.38 = 54,282.12 : x
  2. Step 2: Convert to fraction form
    154,142.55/231,232.38 = 54,282.12/x
  3. Step 3: Cross multiply
    154,142.55x = 231,232.38 × 54,282.12
  4. Step 4: Simplify right side
    154,142.55x = 12,551,783,799.05
  5. Step 5: Solve for x
    x = 12,551,783,799.05/154,142.55
  6. Step 6: Final answer
    x = 81,429.71

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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.