Home / 100,845.80-151,290.30-30,732.20

Finding the Fourth Proportional to 100,845.80, 151,290.30 and 30,732.20

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Solution

The fourth proportional to 100,845.80, 151,290.30 and 30,732.20 is: 46,104.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,845.80 : 151,290.30 = 30,732.20 : x
  2. Step 2: Convert to fraction form
    100,845.80/151,290.30 = 30,732.20/x
  3. Step 3: Cross multiply
    100,845.80x = 151,290.30 × 30,732.20
  4. Step 4: Simplify right side
    100,845.80x = 4,649,483,757.66
  5. Step 5: Solve for x
    x = 4,649,483,757.66/100,845.80
  6. Step 6: Final answer
    x = 46,104.88

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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.