Home / 188,578.44-260,242.20-103,700.16

Finding the Fourth Proportional to 188,578.44, 260,242.20 and 103,700.16

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Solution

The fourth proportional to 188,578.44, 260,242.20 and 103,700.16 is: 143,108.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,578.44 : 260,242.20 = 103,700.16 : x
  2. Step 2: Convert to fraction form
    188,578.44/260,242.20 = 103,700.16/x
  3. Step 3: Cross multiply
    188,578.44x = 260,242.20 × 103,700.16
  4. Step 4: Simplify right side
    188,578.44x = 26,987,157,778.75
  5. Step 5: Solve for x
    x = 26,987,157,778.75/188,578.44
  6. Step 6: Final answer
    x = 143,108.39

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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.