Home / 100,516.60-150,670-33,933.79

Finding the Fourth Proportional to 100,516.60, 150,670 and 33,933.79

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Solution

The fourth proportional to 100,516.60, 150,670 and 33,933.79 is: 50,865.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,516.60 : 150,670 = 33,933.79 : x
  2. Step 2: Convert to fraction form
    100,516.60/150,670 = 33,933.79/x
  3. Step 3: Cross multiply
    100,516.60x = 150,670 × 33,933.79
  4. Step 4: Simplify right side
    100,516.60x = 5,112,804,139.30
  5. Step 5: Solve for x
    x = 5,112,804,139.30/100,516.60
  6. Step 6: Final answer
    x = 50,865.27

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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.