Home / 130,078.85-195,131.30-35,310.60

Finding the Fourth Proportional to 130,078.85, 195,131.30 and 35,310.60

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Solution

The fourth proportional to 130,078.85, 195,131.30 and 35,310.60 is: 52,969.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,078.85 : 195,131.30 = 35,310.60 : x
  2. Step 2: Convert to fraction form
    130,078.85/195,131.30 = 35,310.60/x
  3. Step 3: Cross multiply
    130,078.85x = 195,131.30 × 35,310.60
  4. Step 4: Simplify right side
    130,078.85x = 6,890,203,105.23
  5. Step 5: Solve for x
    x = 6,890,203,105.23/130,078.85
  6. Step 6: Final answer
    x = 52,969.44

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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.