Home / 100,202.72-150,318.84-30,087.68

Finding the Fourth Proportional to 100,202.72, 150,318.84 and 30,087.68

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Solution

The fourth proportional to 100,202.72, 150,318.84 and 30,087.68 is: 45,135.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,202.72 : 150,318.84 = 30,087.68 : x
  2. Step 2: Convert to fraction form
    100,202.72/150,318.84 = 30,087.68/x
  3. Step 3: Cross multiply
    100,202.72x = 150,318.84 × 30,087.68
  4. Step 4: Simplify right side
    100,202.72x = 4,522,745,155.89
  5. Step 5: Solve for x
    x = 4,522,745,155.89/100,202.72
  6. Step 6: Final answer
    x = 45,135.95

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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.