Home / 105,988.20-158,983.90-27,100.68

Finding the Fourth Proportional to 105,988.20, 158,983.90 and 27,100.68

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Solution

The fourth proportional to 105,988.20, 158,983.90 and 27,100.68 is: 40,651.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,988.20 : 158,983.90 = 27,100.68 : x
  2. Step 2: Convert to fraction form
    105,988.20/158,983.90 = 27,100.68/x
  3. Step 3: Cross multiply
    105,988.20x = 158,983.90 × 27,100.68
  4. Step 4: Simplify right side
    105,988.20x = 4,308,571,799.05
  5. Step 5: Solve for x
    x = 4,308,571,799.05/105,988.20
  6. Step 6: Final answer
    x = 40,651.43

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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.