Home / 128,327.82-192,524.46-53,423.04

Finding the Fourth Proportional to 128,327.82, 192,524.46 and 53,423.04

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Solution

The fourth proportional to 128,327.82, 192,524.46 and 53,423.04 is: 80,148.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,327.82 : 192,524.46 = 53,423.04 : x
  2. Step 2: Convert to fraction form
    128,327.82/192,524.46 = 53,423.04/x
  3. Step 3: Cross multiply
    128,327.82x = 192,524.46 × 53,423.04
  4. Step 4: Simplify right side
    128,327.82x = 10,285,241,927.56
  5. Step 5: Solve for x
    x = 10,285,241,927.56/128,327.82
  6. Step 6: Final answer
    x = 80,148.19

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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.