Home / 100,338.24-150,532.39-70,813.74

Finding the Fourth Proportional to 100,338.24, 150,532.39 and 70,813.74

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Solution

The fourth proportional to 100,338.24, 150,532.39 and 70,813.74 is: 106,238.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,338.24 : 150,532.39 = 70,813.74 : x
  2. Step 2: Convert to fraction form
    100,338.24/150,532.39 = 70,813.74/x
  3. Step 3: Cross multiply
    100,338.24x = 150,532.39 × 70,813.74
  4. Step 4: Simplify right side
    100,338.24x = 10,659,762,180.05
  5. Step 5: Solve for x
    x = 10,659,762,180.05/100,338.24
  6. Step 6: Final answer
    x = 106,238.28

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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.