Home / 100,434.21-150,651.32-38,104.71

Finding the Fourth Proportional to 100,434.21, 150,651.32 and 38,104.71

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Solution

The fourth proportional to 100,434.21, 150,651.32 and 38,104.71 is: 57,157.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,434.21 : 150,651.32 = 38,104.71 : x
  2. Step 2: Convert to fraction form
    100,434.21/150,651.32 = 38,104.71/x
  3. Step 3: Cross multiply
    100,434.21x = 150,651.32 × 38,104.71
  4. Step 4: Simplify right side
    100,434.21x = 5,740,524,669.19
  5. Step 5: Solve for x
    x = 5,740,524,669.19/100,434.21
  6. Step 6: Final answer
    x = 57,157.07

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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.