Home / 190,198.27-262,470.41-105,313.51

Finding the Fourth Proportional to 190,198.27, 262,470.41 and 105,313.51

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Solution

The fourth proportional to 190,198.27, 262,470.41 and 105,313.51 is: 145,330.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,198.27 : 262,470.41 = 105,313.51 : x
  2. Step 2: Convert to fraction form
    190,198.27/262,470.41 = 105,313.51/x
  3. Step 3: Cross multiply
    190,198.27x = 262,470.41 × 105,313.51
  4. Step 4: Simplify right side
    190,198.27x = 27,641,679,621.67
  5. Step 5: Solve for x
    x = 27,641,679,621.67/190,198.27
  6. Step 6: Final answer
    x = 145,330.87

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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.