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Finding the Fourth Proportional to 100,165.80, 150,030.36 and 50,158.68

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Solution

The fourth proportional to 100,165.80, 150,030.36 and 50,158.68 is: 75,128.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,165.80 : 150,030.36 = 50,158.68 : x
  2. Step 2: Convert to fraction form
    100,165.80/150,030.36 = 50,158.68/x
  3. Step 3: Cross multiply
    100,165.80x = 150,030.36 × 50,158.68
  4. Step 4: Simplify right side
    100,165.80x = 7,525,324,817.52
  5. Step 5: Solve for x
    x = 7,525,324,817.52/100,165.80
  6. Step 6: Final answer
    x = 75,128.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.