Home / 128,194.93-192,310.62-39,455.83

Finding the Fourth Proportional to 128,194.93, 192,310.62 and 39,455.83

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Solution

The fourth proportional to 128,194.93, 192,310.62 and 39,455.83 is: 59,189.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,194.93 : 192,310.62 = 39,455.83 : x
  2. Step 2: Convert to fraction form
    128,194.93/192,310.62 = 39,455.83/x
  3. Step 3: Cross multiply
    128,194.93x = 192,310.62 × 39,455.83
  4. Step 4: Simplify right side
    128,194.93x = 7,587,775,129.91
  5. Step 5: Solve for x
    x = 7,587,775,129.91/128,194.93
  6. Step 6: Final answer
    x = 59,189.35

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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.