Home / 154,415.40-231,623.10-54,578.85

Finding the Fourth Proportional to 154,415.40, 231,623.10 and 54,578.85

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Solution

The fourth proportional to 154,415.40, 231,623.10 and 54,578.85 is: 81,868.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,415.40 : 231,623.10 = 54,578.85 : x
  2. Step 2: Convert to fraction form
    154,415.40/231,623.10 = 54,578.85/x
  3. Step 3: Cross multiply
    154,415.40x = 231,623.10 × 54,578.85
  4. Step 4: Simplify right side
    154,415.40x = 12,641,722,431.44
  5. Step 5: Solve for x
    x = 12,641,722,431.44/154,415.40
  6. Step 6: Final answer
    x = 81,868.28

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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.