Home / 129,318.37-193,977.33-40,578.57

Finding the Fourth Proportional to 129,318.37, 193,977.33 and 40,578.57

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Solution

The fourth proportional to 129,318.37, 193,977.33 and 40,578.57 is: 60,867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,318.37 : 193,977.33 = 40,578.57 : x
  2. Step 2: Convert to fraction form
    129,318.37/193,977.33 = 40,578.57/x
  3. Step 3: Cross multiply
    129,318.37x = 193,977.33 × 40,578.57
  4. Step 4: Simplify right side
    129,318.37x = 7,871,322,739.90
  5. Step 5: Solve for x
    x = 7,871,322,739.90/129,318.37
  6. Step 6: Final answer
    x = 60,867.78

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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.