Home / 190,399.89-262,760.45-105,511.49

Finding the Fourth Proportional to 190,399.89, 262,760.45 and 105,511.49

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Solution

The fourth proportional to 190,399.89, 262,760.45 and 105,511.49 is: 145,610.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,399.89 : 262,760.45 = 105,511.49 : x
  2. Step 2: Convert to fraction form
    190,399.89/262,760.45 = 105,511.49/x
  3. Step 3: Cross multiply
    190,399.89x = 262,760.45 × 105,511.49
  4. Step 4: Simplify right side
    190,399.89x = 27,724,244,751.21
  5. Step 5: Solve for x
    x = 27,724,244,751.21/190,399.89
  6. Step 6: Final answer
    x = 145,610.61

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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.