Home / 141,161.52-194,764.88-80,719.68

Finding the Fourth Proportional to 141,161.52, 194,764.88 and 80,719.68

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Solution

The fourth proportional to 141,161.52, 194,764.88 and 80,719.68 is: 111,371.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,161.52 : 194,764.88 = 80,719.68 : x
  2. Step 2: Convert to fraction form
    141,161.52/194,764.88 = 80,719.68/x
  3. Step 3: Cross multiply
    141,161.52x = 194,764.88 × 80,719.68
  4. Step 4: Simplify right side
    141,161.52x = 15,721,358,385.24
  5. Step 5: Solve for x
    x = 15,721,358,385.24/141,161.52
  6. Step 6: Final answer
    x = 111,371.42

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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.