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Finding the Fourth Proportional to 188,233.36, 259,762.44 and 103,355.80

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Solution

The fourth proportional to 188,233.36, 259,762.44 and 103,355.80 is: 142,631.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,233.36 : 259,762.44 = 103,355.80 : x
  2. Step 2: Convert to fraction form
    188,233.36/259,762.44 = 103,355.80/x
  3. Step 3: Cross multiply
    188,233.36x = 259,762.44 × 103,355.80
  4. Step 4: Simplify right side
    188,233.36x = 26,847,954,796.15
  5. Step 5: Solve for x
    x = 26,847,954,796.15/188,233.36
  6. Step 6: Final answer
    x = 142,631.23

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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.