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Finding the Fourth Proportional to 171,505.56, 236,759.94 and 120,561.96

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Solution

The fourth proportional to 171,505.56, 236,759.94 and 120,561.96 is: 166,433.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,505.56 : 236,759.94 = 120,561.96 : x
  2. Step 2: Convert to fraction form
    171,505.56/236,759.94 = 120,561.96/x
  3. Step 3: Cross multiply
    171,505.56x = 236,759.94 × 120,561.96
  4. Step 4: Simplify right side
    171,505.56x = 28,544,242,415.88
  5. Step 5: Solve for x
    x = 28,544,242,415.88/171,505.56
  6. Step 6: Final answer
    x = 166,433.34

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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.