Home / 179,990.20-269,855.70-101,128.60

Finding the Fourth Proportional to 179,990.20, 269,855.70 and 101,128.60

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Solution

The fourth proportional to 179,990.20, 269,855.70 and 101,128.60 is: 151,620.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,990.20 : 269,855.70 = 101,128.60 : x
  2. Step 2: Convert to fraction form
    179,990.20/269,855.70 = 101,128.60/x
  3. Step 3: Cross multiply
    179,990.20x = 269,855.70 × 101,128.60
  4. Step 4: Simplify right side
    179,990.20x = 27,290,129,143.02
  5. Step 5: Solve for x
    x = 27,290,129,143.02/179,990.20
  6. Step 6: Final answer
    x = 151,620.08

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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.