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Finding the Fourth Proportional to 206,651.52, 285,313.59 and 126,125.73

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Solution

The fourth proportional to 206,651.52, 285,313.59 and 126,125.73 is: 174,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,651.52 : 285,313.59 = 126,125.73 : x
  2. Step 2: Convert to fraction form
    206,651.52/285,313.59 = 126,125.73/x
  3. Step 3: Cross multiply
    206,651.52x = 285,313.59 × 126,125.73
  4. Step 4: Simplify right side
    206,651.52x = 35,985,384,817.67
  5. Step 5: Solve for x
    x = 35,985,384,817.67/206,651.52
  6. Step 6: Final answer
    x = 174,135.59

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1.5x scale

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.