Home / 139,334.42-192,256.53-82,759.70

Finding the Fourth Proportional to 139,334.42, 192,256.53 and 82,759.70

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Solution

The fourth proportional to 139,334.42, 192,256.53 and 82,759.70 is: 114,193.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,334.42 : 192,256.53 = 82,759.70 : x
  2. Step 2: Convert to fraction form
    139,334.42/192,256.53 = 82,759.70/x
  3. Step 3: Cross multiply
    139,334.42x = 192,256.53 × 82,759.70
  4. Step 4: Simplify right side
    139,334.42x = 15,911,092,745.84
  5. Step 5: Solve for x
    x = 15,911,092,745.84/139,334.42
  6. Step 6: Final answer
    x = 114,193.55

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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.