Home / 133,635.68-184,373.85-91,120.40

Finding the Fourth Proportional to 133,635.68, 184,373.85 and 91,120.40

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Solution

The fourth proportional to 133,635.68, 184,373.85 and 91,120.40 is: 125,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,635.68 : 184,373.85 = 91,120.40 : x
  2. Step 2: Convert to fraction form
    133,635.68/184,373.85 = 91,120.40/x
  3. Step 3: Cross multiply
    133,635.68x = 184,373.85 × 91,120.40
  4. Step 4: Simplify right side
    133,635.68x = 16,800,218,961.54
  5. Step 5: Solve for x
    x = 16,800,218,961.54/133,635.68
  6. Step 6: Final answer
    x = 125,716.57

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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.