Home / 154,143.55-231,233.88-54,283.12

Finding the Fourth Proportional to 154,143.55, 231,233.88 and 54,283.12

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Solution

The fourth proportional to 154,143.55, 231,233.88 and 54,283.12 is: 81,431.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,143.55 : 231,233.88 = 54,283.12 : x
  2. Step 2: Convert to fraction form
    154,143.55/231,233.88 = 54,283.12/x
  3. Step 3: Cross multiply
    154,143.55x = 231,233.88 × 54,283.12
  4. Step 4: Simplify right side
    154,143.55x = 12,552,096,456.11
  5. Step 5: Solve for x
    x = 12,552,096,456.11/154,143.55
  6. Step 6: Final answer
    x = 81,431.21

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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.