Home / 107,540.13-161,343.02-54,986.52

Finding the Fourth Proportional to 107,540.13, 161,343.02 and 54,986.52

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Solution

The fourth proportional to 107,540.13, 161,343.02 and 54,986.52 is: 82,496.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,540.13 : 161,343.02 = 54,986.52 : x
  2. Step 2: Convert to fraction form
    107,540.13/161,343.02 = 54,986.52/x
  3. Step 3: Cross multiply
    107,540.13x = 161,343.02 × 54,986.52
  4. Step 4: Simplify right side
    107,540.13x = 8,871,690,921.16
  5. Step 5: Solve for x
    x = 8,871,690,921.16/107,540.13
  6. Step 6: Final answer
    x = 82,496.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.