Home / 139,552.38-192,583.83-75,890.19

Finding the Fourth Proportional to 139,552.38, 192,583.83 and 75,890.19

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Solution

The fourth proportional to 139,552.38, 192,583.83 and 75,890.19 is: 104,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,552.38 : 192,583.83 = 75,890.19 : x
  2. Step 2: Convert to fraction form
    139,552.38/192,583.83 = 75,890.19/x
  3. Step 3: Cross multiply
    139,552.38x = 192,583.83 × 75,890.19
  4. Step 4: Simplify right side
    139,552.38x = 14,615,223,449.63
  5. Step 5: Solve for x
    x = 14,615,223,449.63/139,552.38
  6. Step 6: Final answer
    x = 104,729.30

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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.