Home / 100,250.34-150,271.83-47,619.78

Finding the Fourth Proportional to 100,250.34, 150,271.83 and 47,619.78

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Solution

The fourth proportional to 100,250.34, 150,271.83 and 47,619.78 is: 71,380.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,250.34 : 150,271.83 = 47,619.78 : x
  2. Step 2: Convert to fraction form
    100,250.34/150,271.83 = 47,619.78/x
  3. Step 3: Cross multiply
    100,250.34x = 150,271.83 × 47,619.78
  4. Step 4: Simplify right side
    100,250.34x = 7,155,911,484.80
  5. Step 5: Solve for x
    x = 7,155,911,484.80/100,250.34
  6. Step 6: Final answer
    x = 71,380.42

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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.