Home / 100,351.38-150,528.14-30,231.30

Finding the Fourth Proportional to 100,351.38, 150,528.14 and 30,231.30

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Solution

The fourth proportional to 100,351.38, 150,528.14 and 30,231.30 is: 45,347.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,351.38 : 150,528.14 = 30,231.30 : x
  2. Step 2: Convert to fraction form
    100,351.38/150,528.14 = 30,231.30/x
  3. Step 3: Cross multiply
    100,351.38x = 150,528.14 × 30,231.30
  4. Step 4: Simplify right side
    100,351.38x = 4,550,661,358.78
  5. Step 5: Solve for x
    x = 4,550,661,358.78/100,351.38
  6. Step 6: Final answer
    x = 45,347.27

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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.