Home / 130,068.45-195,121.26-40,118.73

Finding the Fourth Proportional to 130,068.45, 195,121.26 and 40,118.73

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Solution

The fourth proportional to 130,068.45, 195,121.26 and 40,118.73 is: 60,183.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,068.45 : 195,121.26 = 40,118.73 : x
  2. Step 2: Convert to fraction form
    130,068.45/195,121.26 = 40,118.73/x
  3. Step 3: Cross multiply
    130,068.45x = 195,121.26 × 40,118.73
  4. Step 4: Simplify right side
    130,068.45x = 7,828,017,147.20
  5. Step 5: Solve for x
    x = 7,828,017,147.20/130,068.45
  6. Step 6: Final answer
    x = 60,183.83

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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.