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Finding the Fourth Proportional to 139,197.92, 192,093.64 and 75,535.70

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Solution

The fourth proportional to 139,197.92, 192,093.64 and 75,535.70 is: 104,239.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,197.92 : 192,093.64 = 75,535.70 : x
  2. Step 2: Convert to fraction form
    139,197.92/192,093.64 = 75,535.70/x
  3. Step 3: Cross multiply
    139,197.92x = 192,093.64 × 75,535.70
  4. Step 4: Simplify right side
    139,197.92x = 14,509,926,413.64
  5. Step 5: Solve for x
    x = 14,509,926,413.64/139,197.92
  6. Step 6: Final answer
    x = 104,239.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.