Home / 154,102.38-231,220.40-54,333.87

Finding the Fourth Proportional to 154,102.38, 231,220.40 and 54,333.87

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Solution

The fourth proportional to 154,102.38, 231,220.40 and 54,333.87 is: 81,524.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,102.38 : 231,220.40 = 54,333.87 : x
  2. Step 2: Convert to fraction form
    154,102.38/231,220.40 = 54,333.87/x
  3. Step 3: Cross multiply
    154,102.38x = 231,220.40 × 54,333.87
  4. Step 4: Simplify right side
    154,102.38x = 12,563,098,883.28
  5. Step 5: Solve for x
    x = 12,563,098,883.28/154,102.38
  6. Step 6: Final answer
    x = 81,524.37

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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.