Home / 105,350.40-158,179.20-82,003.20

Finding the Fourth Proportional to 105,350.40, 158,179.20 and 82,003.20

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Solution

The fourth proportional to 105,350.40, 158,179.20 and 82,003.20 is: 123,124.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,350.40 : 158,179.20 = 82,003.20 : x
  2. Step 2: Convert to fraction form
    105,350.40/158,179.20 = 82,003.20/x
  3. Step 3: Cross multiply
    105,350.40x = 158,179.20 × 82,003.20
  4. Step 4: Simplify right side
    105,350.40x = 12,971,200,573.44
  5. Step 5: Solve for x
    x = 12,971,200,573.44/105,350.40
  6. Step 6: Final answer
    x = 123,124.36

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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.