Home / 141,785.03-195,661.78-80,530.81

Finding the Fourth Proportional to 141,785.03, 195,661.78 and 80,530.81

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Solution

The fourth proportional to 141,785.03, 195,661.78 and 80,530.81 is: 111,131.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,785.03 : 195,661.78 = 80,530.81 : x
  2. Step 2: Convert to fraction form
    141,785.03/195,661.78 = 80,530.81/x
  3. Step 3: Cross multiply
    141,785.03x = 195,661.78 × 80,530.81
  4. Step 4: Simplify right side
    141,785.03x = 15,756,800,938.96
  5. Step 5: Solve for x
    x = 15,756,800,938.96/141,785.03
  6. Step 6: Final answer
    x = 111,131.62

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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.