Home / 130,072.20-195,067.80-51,210.60

Finding the Fourth Proportional to 130,072.20, 195,067.80 and 51,210.60

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Solution

The fourth proportional to 130,072.20, 195,067.80 and 51,210.60 is: 76,799.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,072.20 : 195,067.80 = 51,210.60 : x
  2. Step 2: Convert to fraction form
    130,072.20/195,067.80 = 51,210.60/x
  3. Step 3: Cross multiply
    130,072.20x = 195,067.80 × 51,210.60
  4. Step 4: Simplify right side
    130,072.20x = 9,989,539,078.68
  5. Step 5: Solve for x
    x = 9,989,539,078.68/130,072.20
  6. Step 6: Final answer
    x = 76,799.95

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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.