Home / 100,435.24-150,664.38-30,318.76

Finding the Fourth Proportional to 100,435.24, 150,664.38 and 30,318.76

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Solution

The fourth proportional to 100,435.24, 150,664.38 and 30,318.76 is: 45,481.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,435.24 : 150,664.38 = 30,318.76 : x
  2. Step 2: Convert to fraction form
    100,435.24/150,664.38 = 30,318.76/x
  3. Step 3: Cross multiply
    100,435.24x = 150,664.38 × 30,318.76
  4. Step 4: Simplify right side
    100,435.24x = 4,567,957,177.77
  5. Step 5: Solve for x
    x = 4,567,957,177.77/100,435.24
  6. Step 6: Final answer
    x = 45,481.62

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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.