Home / 105,781.75-158,687.44-30,907.37

Finding the Fourth Proportional to 105,781.75, 158,687.44 and 30,907.37

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Solution

The fourth proportional to 105,781.75, 158,687.44 and 30,907.37 is: 46,365.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,781.75 : 158,687.44 = 30,907.37 : x
  2. Step 2: Convert to fraction form
    105,781.75/158,687.44 = 30,907.37/x
  3. Step 3: Cross multiply
    105,781.75x = 158,687.44 × 30,907.37
  4. Step 4: Simplify right side
    105,781.75x = 4,904,611,741.88
  5. Step 5: Solve for x
    x = 4,904,611,741.88/105,781.75
  6. Step 6: Final answer
    x = 46,365.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.