Home / 100,768.56-151,171.21-34,205.19

Finding the Fourth Proportional to 100,768.56, 151,171.21 and 34,205.19

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Solution

The fourth proportional to 100,768.56, 151,171.21 and 34,205.19 is: 51,314.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,768.56 : 151,171.21 = 34,205.19 : x
  2. Step 2: Convert to fraction form
    100,768.56/151,171.21 = 34,205.19/x
  3. Step 3: Cross multiply
    100,768.56x = 151,171.21 × 34,205.19
  4. Step 4: Simplify right side
    100,768.56x = 5,170,839,436.44
  5. Step 5: Solve for x
    x = 5,170,839,436.44/100,768.56
  6. Step 6: Final answer
    x = 51,314.02

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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.