Home / 128,046.75-192,025.03-42,634.41

Finding the Fourth Proportional to 128,046.75, 192,025.03 and 42,634.41

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Solution

The fourth proportional to 128,046.75, 192,025.03 and 42,634.41 is: 63,936.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,046.75 : 192,025.03 = 42,634.41 : x
  2. Step 2: Convert to fraction form
    128,046.75/192,025.03 = 42,634.41/x
  3. Step 3: Cross multiply
    128,046.75x = 192,025.03 × 42,634.41
  4. Step 4: Simplify right side
    128,046.75x = 8,186,874,833.96
  5. Step 5: Solve for x
    x = 8,186,874,833.96/128,046.75
  6. Step 6: Final answer
    x = 63,936.61

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1.5x scale

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.