Home / 100,819.35-151,229.03-30,689.55

Finding the Fourth Proportional to 100,819.35, 151,229.03 and 30,689.55

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Solution

The fourth proportional to 100,819.35, 151,229.03 and 30,689.55 is: 46,034.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,819.35 : 151,229.03 = 30,689.55 : x
  2. Step 2: Convert to fraction form
    100,819.35/151,229.03 = 30,689.55/x
  3. Step 3: Cross multiply
    100,819.35x = 151,229.03 × 30,689.55
  4. Step 4: Simplify right side
    100,819.35x = 4,641,150,724.19
  5. Step 5: Solve for x
    x = 4,641,150,724.19/100,819.35
  6. Step 6: Final answer
    x = 46,034.33

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1.5x scale

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.