Home / 128,428.19-192,594.39-44,164.50

Finding the Fourth Proportional to 128,428.19, 192,594.39 and 44,164.50

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Solution

The fourth proportional to 128,428.19, 192,594.39 and 44,164.50 is: 66,230.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,428.19 : 192,594.39 = 44,164.50 : x
  2. Step 2: Convert to fraction form
    128,428.19/192,594.39 = 44,164.50/x
  3. Step 3: Cross multiply
    128,428.19x = 192,594.39 × 44,164.50
  4. Step 4: Simplify right side
    128,428.19x = 8,505,834,297.73
  5. Step 5: Solve for x
    x = 8,505,834,297.73/128,428.19
  6. Step 6: Final answer
    x = 66,230.28

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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.