Home / 188,664.90-260,361.59-103,781.96

Finding the Fourth Proportional to 188,664.90, 260,361.59 and 103,781.96

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Solution

The fourth proportional to 188,664.90, 260,361.59 and 103,781.96 is: 143,221.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,664.90 : 260,361.59 = 103,781.96 : x
  2. Step 2: Convert to fraction form
    188,664.90/260,361.59 = 103,781.96/x
  3. Step 3: Cross multiply
    188,664.90x = 260,361.59 × 103,781.96
  4. Step 4: Simplify right side
    188,664.90x = 27,020,835,858.33
  5. Step 5: Solve for x
    x = 27,020,835,858.33/188,664.90
  6. Step 6: Final answer
    x = 143,221.32

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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.