Home / 139,400.85-192,373.38-75,738.63

Finding the Fourth Proportional to 139,400.85, 192,373.38 and 75,738.63

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Solution

The fourth proportional to 139,400.85, 192,373.38 and 75,738.63 is: 104,519.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,400.85 : 192,373.38 = 75,738.63 : x
  2. Step 2: Convert to fraction form
    139,400.85/192,373.38 = 75,738.63/x
  3. Step 3: Cross multiply
    139,400.85x = 192,373.38 × 75,738.63
  4. Step 4: Simplify right side
    139,400.85x = 14,570,096,249.67
  5. Step 5: Solve for x
    x = 14,570,096,249.67/139,400.85
  6. Step 6: Final answer
    x = 104,519.42

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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.