Home / 139,263.80-192,184.28-75,601.56

Finding the Fourth Proportional to 139,263.80, 192,184.28 and 75,601.56

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Solution

The fourth proportional to 139,263.80, 192,184.28 and 75,601.56 is: 104,330.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,263.80 : 192,184.28 = 75,601.56 : x
  2. Step 2: Convert to fraction form
    139,263.80/192,184.28 = 75,601.56/x
  3. Step 3: Cross multiply
    139,263.80x = 192,184.28 × 75,601.56
  4. Step 4: Simplify right side
    139,263.80x = 14,529,431,375.48
  5. Step 5: Solve for x
    x = 14,529,431,375.48/139,263.80
  6. Step 6: Final answer
    x = 104,330.28

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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.