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Finding the Fourth Proportional to 156,770.20, 234,809.70 and 136,034.20

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Solution

The fourth proportional to 156,770.20, 234,809.70 and 136,034.20 is: 203,751.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,770.20 : 234,809.70 = 136,034.20 : x
  2. Step 2: Convert to fraction form
    156,770.20/234,809.70 = 136,034.20/x
  3. Step 3: Cross multiply
    156,770.20x = 234,809.70 × 136,034.20
  4. Step 4: Simplify right side
    156,770.20x = 31,942,149,691.74
  5. Step 5: Solve for x
    x = 31,942,149,691.74/156,770.20
  6. Step 6: Final answer
    x = 203,751.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.