Home / 154,583.20-231,947.70-115,217.20

Finding the Fourth Proportional to 154,583.20, 231,947.70 and 115,217.20

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Solution

The fourth proportional to 154,583.20, 231,947.70 and 115,217.20 is: 172,880.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,583.20 : 231,947.70 = 115,217.20 : x
  2. Step 2: Convert to fraction form
    154,583.20/231,947.70 = 115,217.20/x
  3. Step 3: Cross multiply
    154,583.20x = 231,947.70 × 115,217.20
  4. Step 4: Simplify right side
    154,583.20x = 26,724,364,540.44
  5. Step 5: Solve for x
    x = 26,724,364,540.44/154,583.20
  6. Step 6: Final answer
    x = 172,880.14

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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.