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Finding the Fourth Proportional to 192,012.70, 288,105.45 and 92,134.30

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Solution

The fourth proportional to 192,012.70, 288,105.45 and 92,134.30 is: 138,242.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,012.70 : 288,105.45 = 92,134.30 : x
  2. Step 2: Convert to fraction form
    192,012.70/288,105.45 = 92,134.30/x
  3. Step 3: Cross multiply
    192,012.70x = 288,105.45 × 92,134.30
  4. Step 4: Simplify right side
    192,012.70x = 26,544,393,961.94
  5. Step 5: Solve for x
    x = 26,544,393,961.94/192,012.70
  6. Step 6: Final answer
    x = 138,242.91

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1.5x scale

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.