Home / 154,143.93-231,234.43-54,283.49

Finding the Fourth Proportional to 154,143.93, 231,234.43 and 54,283.49

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Solution

The fourth proportional to 154,143.93, 231,234.43 and 54,283.49 is: 81,431.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,143.93 : 231,234.43 = 54,283.49 : x
  2. Step 2: Convert to fraction form
    154,143.93/231,234.43 = 54,283.49/x
  3. Step 3: Cross multiply
    154,143.93x = 231,234.43 × 54,283.49
  4. Step 4: Simplify right side
    154,143.93x = 12,552,211,868.56
  5. Step 5: Solve for x
    x = 12,552,211,868.56/154,143.93
  6. Step 6: Final answer
    x = 81,431.76

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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.