Home / 105,486.11-158,196.14-30,611.43

Finding the Fourth Proportional to 105,486.11, 158,196.14 and 30,611.43

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Solution

The fourth proportional to 105,486.11, 158,196.14 and 30,611.43 is: 45,907.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,486.11 : 158,196.14 = 30,611.43 : x
  2. Step 2: Convert to fraction form
    105,486.11/158,196.14 = 30,611.43/x
  3. Step 3: Cross multiply
    105,486.11x = 158,196.14 × 30,611.43
  4. Step 4: Simplify right side
    105,486.11x = 4,842,609,912.82
  5. Step 5: Solve for x
    x = 4,842,609,912.82/105,486.11
  6. Step 6: Final answer
    x = 45,907.56

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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.