Home / 128,260.85-192,391.27-34,766.60

Finding the Fourth Proportional to 128,260.85, 192,391.27 and 34,766.60

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Solution

The fourth proportional to 128,260.85, 192,391.27 and 34,766.60 is: 52,149.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,260.85 : 192,391.27 = 34,766.60 : x
  2. Step 2: Convert to fraction form
    128,260.85/192,391.27 = 34,766.60/x
  3. Step 3: Cross multiply
    128,260.85x = 192,391.27 × 34,766.60
  4. Step 4: Simplify right side
    128,260.85x = 6,688,789,278.71
  5. Step 5: Solve for x
    x = 6,688,789,278.71/128,260.85
  6. Step 6: Final answer
    x = 52,149.89

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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.