Home / 128,241.83-192,366.01-60,758.05

Finding the Fourth Proportional to 128,241.83, 192,366.01 and 60,758.05

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Solution

The fourth proportional to 128,241.83, 192,366.01 and 60,758.05 is: 91,138.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,241.83 : 192,366.01 = 60,758.05 : x
  2. Step 2: Convert to fraction form
    128,241.83/192,366.01 = 60,758.05/x
  3. Step 3: Cross multiply
    128,241.83x = 192,366.01 × 60,758.05
  4. Step 4: Simplify right side
    128,241.83x = 11,687,783,780.48
  5. Step 5: Solve for x
    x = 11,687,783,780.48/128,241.83
  6. Step 6: Final answer
    x = 91,138.62

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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.