Home / 128,727.08-192,839.24-61,162.96

Finding the Fourth Proportional to 128,727.08, 192,839.24 and 61,162.96

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Solution

The fourth proportional to 128,727.08, 192,839.24 and 61,162.96 is: 91,625.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,727.08 : 192,839.24 = 61,162.96 : x
  2. Step 2: Convert to fraction form
    128,727.08/192,839.24 = 61,162.96/x
  3. Step 3: Cross multiply
    128,727.08x = 192,839.24 × 61,162.96
  4. Step 4: Simplify right side
    128,727.08x = 11,794,618,114.92
  5. Step 5: Solve for x
    x = 11,794,618,114.92/128,727.08
  6. Step 6: Final answer
    x = 91,625.00

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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.