Home / 154,444.20-231,212.70-115,175.40

Finding the Fourth Proportional to 154,444.20, 231,212.70 and 115,175.40

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Solution

The fourth proportional to 154,444.20, 231,212.70 and 115,175.40 is: 172,424.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,444.20 : 231,212.70 = 115,175.40 : x
  2. Step 2: Convert to fraction form
    154,444.20/231,212.70 = 115,175.40/x
  3. Step 3: Cross multiply
    154,444.20x = 231,212.70 × 115,175.40
  4. Step 4: Simplify right side
    154,444.20x = 26,630,015,207.58
  5. Step 5: Solve for x
    x = 26,630,015,207.58/154,444.20
  6. Step 6: Final answer
    x = 172,424.83

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1.5x scale

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.