Home / 203,558.34-280,944.12-112,943.46

Finding the Fourth Proportional to 203,558.34, 280,944.12 and 112,943.46

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Solution

The fourth proportional to 203,558.34, 280,944.12 and 112,943.46 is: 155,880.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,558.34 : 280,944.12 = 112,943.46 : x
  2. Step 2: Convert to fraction form
    203,558.34/280,944.12 = 112,943.46/x
  3. Step 3: Cross multiply
    203,558.34x = 280,944.12 × 112,943.46
  4. Step 4: Simplify right side
    203,558.34x = 31,730,800,979.46
  5. Step 5: Solve for x
    x = 31,730,800,979.46/203,558.34
  6. Step 6: Final answer
    x = 155,880.62

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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.