Home / 190,370.64-262,713.27-105,489.54

Finding the Fourth Proportional to 190,370.64, 262,713.27 and 105,489.54

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Solution

The fourth proportional to 190,370.64, 262,713.27 and 105,489.54 is: 145,576.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,370.64 : 262,713.27 = 105,489.54 : x
  2. Step 2: Convert to fraction form
    190,370.64/262,713.27 = 105,489.54/x
  3. Step 3: Cross multiply
    190,370.64x = 262,713.27 × 105,489.54
  4. Step 4: Simplify right side
    190,370.64x = 27,713,502,004.20
  5. Step 5: Solve for x
    x = 27,713,502,004.20/190,370.64
  6. Step 6: Final answer
    x = 145,576.56

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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.