Home / 128,207.00-192,332.39-39,458.54

Finding the Fourth Proportional to 128,207.00, 192,332.39 and 39,458.54

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Solution

The fourth proportional to 128,207.00, 192,332.39 and 39,458.54 is: 59,194.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,207.00 : 192,332.39 = 39,458.54 : x
  2. Step 2: Convert to fraction form
    128,207.00/192,332.39 = 39,458.54/x
  3. Step 3: Cross multiply
    128,207.00x = 192,332.39 × 39,458.54
  4. Step 4: Simplify right side
    128,207.00x = 7,589,154,145.16
  5. Step 5: Solve for x
    x = 7,589,154,145.16/128,207.00
  6. Step 6: Final answer
    x = 59,194.54

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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.