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Finding the Fourth Proportional to 100,119.19, 150,220.68 and 43,930.30

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Solution

The fourth proportional to 100,119.19, 150,220.68 and 43,930.30 is: 65,913.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,119.19 : 150,220.68 = 43,930.30 : x
  2. Step 2: Convert to fraction form
    100,119.19/150,220.68 = 43,930.30/x
  3. Step 3: Cross multiply
    100,119.19x = 150,220.68 × 43,930.30
  4. Step 4: Simplify right side
    100,119.19x = 6,599,239,538.60
  5. Step 5: Solve for x
    x = 6,599,239,538.60/100,119.19
  6. Step 6: Final answer
    x = 65,913.83

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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.