Home / 104,542.86-144,170.79-80,631.66

Finding the Fourth Proportional to 104,542.86, 144,170.79 and 80,631.66

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Solution

The fourth proportional to 104,542.86, 144,170.79 and 80,631.66 is: 111,195.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,542.86 : 144,170.79 = 80,631.66 : x
  2. Step 2: Convert to fraction form
    104,542.86/144,170.79 = 80,631.66/x
  3. Step 3: Cross multiply
    104,542.86x = 144,170.79 × 80,631.66
  4. Step 4: Simplify right side
    104,542.86x = 11,624,730,121.21
  5. Step 5: Solve for x
    x = 11,624,730,121.21/104,542.86
  6. Step 6: Final answer
    x = 111,195.83

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1.5x scale

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.