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Finding the Fourth Proportional to 121,865.21, 182,745.53 and 41,911.22

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Solution

The fourth proportional to 121,865.21, 182,745.53 and 41,911.22 is: 62,848.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,865.21 : 182,745.53 = 41,911.22 : x
  2. Step 2: Convert to fraction form
    121,865.21/182,745.53 = 41,911.22/x
  3. Step 3: Cross multiply
    121,865.21x = 182,745.53 × 41,911.22
  4. Step 4: Simplify right side
    121,865.21x = 7,659,086,988.56
  5. Step 5: Solve for x
    x = 7,659,086,988.56/121,865.21
  6. Step 6: Final answer
    x = 62,848.84

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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.