Home / 203,583.92-280,946.14-112,939.88

Finding the Fourth Proportional to 203,583.92, 280,946.14 and 112,939.88

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Solution

The fourth proportional to 203,583.92, 280,946.14 and 112,939.88 is: 155,857.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,583.92 : 280,946.14 = 112,939.88 : x
  2. Step 2: Convert to fraction form
    203,583.92/280,946.14 = 112,939.88/x
  3. Step 3: Cross multiply
    203,583.92x = 280,946.14 × 112,939.88
  4. Step 4: Simplify right side
    203,583.92x = 31,730,023,507.27
  5. Step 5: Solve for x
    x = 31,730,023,507.27/203,583.92
  6. Step 6: Final answer
    x = 155,857.22

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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.