Home / 190,546.73-262,965-105,661.97

Finding the Fourth Proportional to 190,546.73, 262,965 and 105,661.97

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Solution

The fourth proportional to 190,546.73, 262,965 and 105,661.97 is: 145,819.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,546.73 : 262,965 = 105,661.97 : x
  2. Step 2: Convert to fraction form
    190,546.73/262,965 = 105,661.97/x
  3. Step 3: Cross multiply
    190,546.73x = 262,965 × 105,661.97
  4. Step 4: Simplify right side
    190,546.73x = 27,785,399,941.05
  5. Step 5: Solve for x
    x = 27,785,399,941.05/190,546.73
  6. Step 6: Final answer
    x = 145,819.35

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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.