Home / 190,422.36-262,785.18-105,540.84

Finding the Fourth Proportional to 190,422.36, 262,785.18 and 105,540.84

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Solution

The fourth proportional to 190,422.36, 262,785.18 and 105,540.84 is: 145,647.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,422.36 : 262,785.18 = 105,540.84 : x
  2. Step 2: Convert to fraction form
    190,422.36/262,785.18 = 105,540.84/x
  3. Step 3: Cross multiply
    190,422.36x = 262,785.18 × 105,540.84
  4. Step 4: Simplify right side
    190,422.36x = 27,734,568,636.75
  5. Step 5: Solve for x
    x = 27,734,568,636.75/190,422.36
  6. Step 6: Final answer
    x = 145,647.65

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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.