Home / 196,817.52-271,530-121,234.80

Finding the Fourth Proportional to 196,817.52, 271,530 and 121,234.80

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Solution

The fourth proportional to 196,817.52, 271,530 and 121,234.80 is: 167,255.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,817.52 : 271,530 = 121,234.80 : x
  2. Step 2: Convert to fraction form
    196,817.52/271,530 = 121,234.80/x
  3. Step 3: Cross multiply
    196,817.52x = 271,530 × 121,234.80
  4. Step 4: Simplify right side
    196,817.52x = 32,918,885,244
  5. Step 5: Solve for x
    x = 32,918,885,244/196,817.52
  6. Step 6: Final answer
    x = 167,255.87

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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.