Home / 203,579.44-280,940.34-112,937.20

Finding the Fourth Proportional to 203,579.44, 280,940.34 and 112,937.20

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Solution

The fourth proportional to 203,579.44, 280,940.34 and 112,937.20 is: 155,853.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,579.44 : 280,940.34 = 112,937.20 : x
  2. Step 2: Convert to fraction form
    203,579.44/280,940.34 = 112,937.20/x
  3. Step 3: Cross multiply
    203,579.44x = 280,940.34 × 112,937.20
  4. Step 4: Simplify right side
    203,579.44x = 31,728,615,366.65
  5. Step 5: Solve for x
    x = 31,728,615,366.65/203,579.44
  6. Step 6: Final answer
    x = 155,853.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.