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Finding the Fourth Proportional to 128,241.54, 192,365.60 and 60,757.77

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Solution

The fourth proportional to 128,241.54, 192,365.60 and 60,757.77 is: 91,138.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,241.54 : 192,365.60 = 60,757.77 : x
  2. Step 2: Convert to fraction form
    128,241.54/192,365.60 = 60,757.77/x
  3. Step 3: Cross multiply
    128,241.54x = 192,365.60 × 60,757.77
  4. Step 4: Simplify right side
    128,241.54x = 11,687,705,298.29
  5. Step 5: Solve for x
    x = 11,687,705,298.29/128,241.54
  6. Step 6: Final answer
    x = 91,138.22

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1.5x scale

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.