Home / 128,604.24-192,835.89-39,833.10

Finding the Fourth Proportional to 128,604.24, 192,835.89 and 39,833.10

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Solution

The fourth proportional to 128,604.24, 192,835.89 and 39,833.10 is: 59,727.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,604.24 : 192,835.89 = 39,833.10 : x
  2. Step 2: Convert to fraction form
    128,604.24/192,835.89 = 39,833.10/x
  3. Step 3: Cross multiply
    128,604.24x = 192,835.89 × 39,833.10
  4. Step 4: Simplify right side
    128,604.24x = 7,681,251,289.96
  5. Step 5: Solve for x
    x = 7,681,251,289.96/128,604.24
  6. Step 6: Final answer
    x = 59,727.82

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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.