Home / 128,468-192,704.44-34,976.18

Finding the Fourth Proportional to 128,468, 192,704.44 and 34,976.18

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Solution

The fourth proportional to 128,468, 192,704.44 and 34,976.18 is: 52,464.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,468 : 192,704.44 = 34,976.18 : x
  2. Step 2: Convert to fraction form
    128,468/192,704.44 = 34,976.18/x
  3. Step 3: Cross multiply
    128,468x = 192,704.44 × 34,976.18
  4. Step 4: Simplify right side
    128,468x = 6,740,065,180.24
  5. Step 5: Solve for x
    x = 6,740,065,180.24/128,468
  6. Step 6: Final answer
    x = 52,464.93

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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.