Home / 128,405.47-192,634.48-44,154.69

Finding the Fourth Proportional to 128,405.47, 192,634.48 and 44,154.69

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Solution

The fourth proportional to 128,405.47, 192,634.48 and 44,154.69 is: 66,241.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,405.47 : 192,634.48 = 44,154.69 : x
  2. Step 2: Convert to fraction form
    128,405.47/192,634.48 = 44,154.69/x
  3. Step 3: Cross multiply
    128,405.47x = 192,634.48 × 44,154.69
  4. Step 4: Simplify right side
    128,405.47x = 8,505,715,998.51
  5. Step 5: Solve for x
    x = 8,505,715,998.51/128,405.47
  6. Step 6: Final answer
    x = 66,241.07

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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.