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Finding the Fourth Proportional to 100,424.88, 150,636.69 and 25,544.40

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Solution

The fourth proportional to 100,424.88, 150,636.69 and 25,544.40 is: 38,316.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,424.88 : 150,636.69 = 25,544.40 : x
  2. Step 2: Convert to fraction form
    100,424.88/150,636.69 = 25,544.40/x
  3. Step 3: Cross multiply
    100,424.88x = 150,636.69 × 25,544.40
  4. Step 4: Simplify right side
    100,424.88x = 3,847,923,864.04
  5. Step 5: Solve for x
    x = 3,847,923,864.04/100,424.88
  6. Step 6: Final answer
    x = 38,316.44

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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.