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Finding the Fourth Proportional to 188,241.90, 259,774.25 and 103,364.43

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Solution

The fourth proportional to 188,241.90, 259,774.25 and 103,364.43 is: 142,643.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,241.90 : 259,774.25 = 103,364.43 : x
  2. Step 2: Convert to fraction form
    188,241.90/259,774.25 = 103,364.43/x
  3. Step 3: Cross multiply
    188,241.90x = 259,774.25 × 103,364.43
  4. Step 4: Simplify right side
    188,241.90x = 26,851,417,279.93
  5. Step 5: Solve for x
    x = 26,851,417,279.93/188,241.90
  6. Step 6: Final answer
    x = 142,643.15

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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.