Home / 188,133.57-259,622.99-102,090.36

Finding the Fourth Proportional to 188,133.57, 259,622.99 and 102,090.36

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Solution

The fourth proportional to 188,133.57, 259,622.99 and 102,090.36 is: 140,883.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,133.57 : 259,622.99 = 102,090.36 : x
  2. Step 2: Convert to fraction form
    188,133.57/259,622.99 = 102,090.36/x
  3. Step 3: Cross multiply
    188,133.57x = 259,622.99 × 102,090.36
  4. Step 4: Simplify right side
    188,133.57x = 26,505,004,002.92
  5. Step 5: Solve for x
    x = 26,505,004,002.92/188,133.57
  6. Step 6: Final answer
    x = 140,883.97

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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.