Home / 203,599.43-280,968.90-112,961.34

Finding the Fourth Proportional to 203,599.43, 280,968.90 and 112,961.34

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Solution

The fourth proportional to 203,599.43, 280,968.90 and 112,961.34 is: 155,887.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,599.43 : 280,968.90 = 112,961.34 : x
  2. Step 2: Convert to fraction form
    203,599.43/280,968.90 = 112,961.34/x
  3. Step 3: Cross multiply
    203,599.43x = 280,968.90 × 112,961.34
  4. Step 4: Simplify right side
    203,599.43x = 31,738,623,442.33
  5. Step 5: Solve for x
    x = 31,738,623,442.33/203,599.43
  6. Step 6: Final answer
    x = 155,887.59

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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.