Home / 128,575.04-192,847.21-33,812.61

Finding the Fourth Proportional to 128,575.04, 192,847.21 and 33,812.61

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Solution

The fourth proportional to 128,575.04, 192,847.21 and 33,812.61 is: 50,714.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,575.04 : 192,847.21 = 33,812.61 : x
  2. Step 2: Convert to fraction form
    128,575.04/192,847.21 = 33,812.61/x
  3. Step 3: Cross multiply
    128,575.04x = 192,847.21 × 33,812.61
  4. Step 4: Simplify right side
    128,575.04x = 6,520,667,416.79
  5. Step 5: Solve for x
    x = 6,520,667,416.79/128,575.04
  6. Step 6: Final answer
    x = 50,714.88

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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.