Home / 154,364.20-231,200.70-126,716.20

Finding the Fourth Proportional to 154,364.20, 231,200.70 and 126,716.20

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Solution

The fourth proportional to 154,364.20, 231,200.70 and 126,716.20 is: 189,790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,364.20 : 231,200.70 = 126,716.20 : x
  2. Step 2: Convert to fraction form
    154,364.20/231,200.70 = 126,716.20/x
  3. Step 3: Cross multiply
    154,364.20x = 231,200.70 × 126,716.20
  4. Step 4: Simplify right side
    154,364.20x = 29,296,874,141.34
  5. Step 5: Solve for x
    x = 29,296,874,141.34/154,364.20
  6. Step 6: Final answer
    x = 189,790.60

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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.