Home / 139,230.42-192,138.18-75,568.20

Finding the Fourth Proportional to 139,230.42, 192,138.18 and 75,568.20

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Solution

The fourth proportional to 139,230.42, 192,138.18 and 75,568.20 is: 104,284.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,230.42 : 192,138.18 = 75,568.20 : x
  2. Step 2: Convert to fraction form
    139,230.42/192,138.18 = 75,568.20/x
  3. Step 3: Cross multiply
    139,230.42x = 192,138.18 × 75,568.20
  4. Step 4: Simplify right side
    139,230.42x = 14,519,536,413.88
  5. Step 5: Solve for x
    x = 14,519,536,413.88/139,230.42
  6. Step 6: Final answer
    x = 104,284.22

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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.