Home / 190,018.68-262,222.32-105,135.75

Finding the Fourth Proportional to 190,018.68, 262,222.32 and 105,135.75

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Solution

The fourth proportional to 190,018.68, 262,222.32 and 105,135.75 is: 145,085.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,018.68 : 262,222.32 = 105,135.75 : x
  2. Step 2: Convert to fraction form
    190,018.68/262,222.32 = 105,135.75/x
  3. Step 3: Cross multiply
    190,018.68x = 262,222.32 × 105,135.75
  4. Step 4: Simplify right side
    190,018.68x = 27,568,940,279.94
  5. Step 5: Solve for x
    x = 27,568,940,279.94/190,018.68
  6. Step 6: Final answer
    x = 145,085.42

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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.