Home / 128,233.80-192,350.70-34,739.55

Finding the Fourth Proportional to 128,233.80, 192,350.70 and 34,739.55

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Solution

The fourth proportional to 128,233.80, 192,350.70 and 34,739.55 is: 52,109.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,233.80 : 192,350.70 = 34,739.55 : x
  2. Step 2: Convert to fraction form
    128,233.80/192,350.70 = 34,739.55/x
  3. Step 3: Cross multiply
    128,233.80x = 192,350.70 × 34,739.55
  4. Step 4: Simplify right side
    128,233.80x = 6,682,176,760.19
  5. Step 5: Solve for x
    x = 6,682,176,760.19/128,233.80
  6. Step 6: Final answer
    x = 52,109.33

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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.