Home / 188,440.75-260,048.37-103,558.42

Finding the Fourth Proportional to 188,440.75, 260,048.37 and 103,558.42

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Solution

The fourth proportional to 188,440.75, 260,048.37 and 103,558.42 is: 142,910.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,440.75 : 260,048.37 = 103,558.42 : x
  2. Step 2: Convert to fraction form
    188,440.75/260,048.37 = 103,558.42/x
  3. Step 3: Cross multiply
    188,440.75x = 260,048.37 × 103,558.42
  4. Step 4: Simplify right side
    188,440.75x = 26,930,198,320.78
  5. Step 5: Solve for x
    x = 26,930,198,320.78/188,440.75
  6. Step 6: Final answer
    x = 142,910.69

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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.