Home / 188,511.22-260,138.88-103,627.68

Finding the Fourth Proportional to 188,511.22, 260,138.88 and 103,627.68

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Solution

The fourth proportional to 188,511.22, 260,138.88 and 103,627.68 is: 143,002.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,511.22 : 260,138.88 = 103,627.68 : x
  2. Step 2: Convert to fraction form
    188,511.22/260,138.88 = 103,627.68/x
  3. Step 3: Cross multiply
    188,511.22x = 260,138.88 × 103,627.68
  4. Step 4: Simplify right side
    188,511.22x = 26,957,588,612.20
  5. Step 5: Solve for x
    x = 26,957,588,612.20/188,511.22
  6. Step 6: Final answer
    x = 143,002.57

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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.