Home / 100,769.76-151,170.96-34,215.84

Finding the Fourth Proportional to 100,769.76, 151,170.96 and 34,215.84

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Solution

The fourth proportional to 100,769.76, 151,170.96 and 34,215.84 is: 51,329.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,769.76 : 151,170.96 = 34,215.84 : x
  2. Step 2: Convert to fraction form
    100,769.76/151,170.96 = 34,215.84/x
  3. Step 3: Cross multiply
    100,769.76x = 151,170.96 × 34,215.84
  4. Step 4: Simplify right side
    100,769.76x = 5,172,441,380.01
  5. Step 5: Solve for x
    x = 5,172,441,380.01/100,769.76
  6. Step 6: Final answer
    x = 51,329.30

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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.