Home / 154,067.10-231,100.65-54,339.90

Finding the Fourth Proportional to 154,067.10, 231,100.65 and 54,339.90

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Solution

The fourth proportional to 154,067.10, 231,100.65 and 54,339.90 is: 81,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,067.10 : 231,100.65 = 54,339.90 : x
  2. Step 2: Convert to fraction form
    154,067.10/231,100.65 = 54,339.90/x
  3. Step 3: Cross multiply
    154,067.10x = 231,100.65 × 54,339.90
  4. Step 4: Simplify right side
    154,067.10x = 12,557,986,210.94
  5. Step 5: Solve for x
    x = 12,557,986,210.94/154,067.10
  6. Step 6: Final answer
    x = 81,509.85

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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.