Home / 154,643.20-231,612.72-92,184.64

Finding the Fourth Proportional to 154,643.20, 231,612.72 and 92,184.64

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Solution

The fourth proportional to 154,643.20, 231,612.72 and 92,184.64 is: 138,067.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,643.20 : 231,612.72 = 92,184.64 : x
  2. Step 2: Convert to fraction form
    154,643.20/231,612.72 = 92,184.64/x
  3. Step 3: Cross multiply
    154,643.20x = 231,612.72 × 92,184.64
  4. Step 4: Simplify right side
    154,643.20x = 21,351,135,212.62
  5. Step 5: Solve for x
    x = 21,351,135,212.62/154,643.20
  6. Step 6: Final answer
    x = 138,067.08

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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.