Home / 141,141.42-194,790.64-80,717.68

Finding the Fourth Proportional to 141,141.42, 194,790.64 and 80,717.68

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Solution

The fourth proportional to 141,141.42, 194,790.64 and 80,717.68 is: 111,399.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,141.42 : 194,790.64 = 80,717.68 : x
  2. Step 2: Convert to fraction form
    141,141.42/194,790.64 = 80,717.68/x
  3. Step 3: Cross multiply
    141,141.42x = 194,790.64 × 80,717.68
  4. Step 4: Simplify right side
    141,141.42x = 15,723,048,546.52
  5. Step 5: Solve for x
    x = 15,723,048,546.52/141,141.42
  6. Step 6: Final answer
    x = 111,399.25

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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.