Home / 136,241.37-187,991.43-75,811.83

Finding the Fourth Proportional to 136,241.37, 187,991.43 and 75,811.83

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Solution

The fourth proportional to 136,241.37, 187,991.43 and 75,811.83 is: 104,608.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,241.37 : 187,991.43 = 75,811.83 : x
  2. Step 2: Convert to fraction form
    136,241.37/187,991.43 = 75,811.83/x
  3. Step 3: Cross multiply
    136,241.37x = 187,991.43 × 75,811.83
  4. Step 4: Simplify right side
    136,241.37x = 14,251,974,332.62
  5. Step 5: Solve for x
    x = 14,251,974,332.62/136,241.37
  6. Step 6: Final answer
    x = 104,608.27

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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.