Home / 128,056.23-192,120.80-43,827.57

Finding the Fourth Proportional to 128,056.23, 192,120.80 and 43,827.57

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Solution

The fourth proportional to 128,056.23, 192,120.80 and 43,827.57 is: 65,753.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,056.23 : 192,120.80 = 43,827.57 : x
  2. Step 2: Convert to fraction form
    128,056.23/192,120.80 = 43,827.57/x
  3. Step 3: Cross multiply
    128,056.23x = 192,120.80 × 43,827.57
  4. Step 4: Simplify right side
    128,056.23x = 8,420,187,591.32
  5. Step 5: Solve for x
    x = 8,420,187,591.32/128,056.23
  6. Step 6: Final answer
    x = 65,753.83

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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.