Home / 203,044.10-280,196.76-112,400

Finding the Fourth Proportional to 203,044.10, 280,196.76 and 112,400

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Solution

The fourth proportional to 203,044.10, 280,196.76 and 112,400 is: 155,109.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,044.10 : 280,196.76 = 112,400 : x
  2. Step 2: Convert to fraction form
    203,044.10/280,196.76 = 112,400/x
  3. Step 3: Cross multiply
    203,044.10x = 280,196.76 × 112,400
  4. Step 4: Simplify right side
    203,044.10x = 31,494,115,824
  5. Step 5: Solve for x
    x = 31,494,115,824/203,044.10
  6. Step 6: Final answer
    x = 155,109.73

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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.