Home / 192,067.20-287,733.60-103,291.20

Finding the Fourth Proportional to 192,067.20, 287,733.60 and 103,291.20

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Solution

The fourth proportional to 192,067.20, 287,733.60 and 103,291.20 is: 154,739.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,067.20 : 287,733.60 = 103,291.20 : x
  2. Step 2: Convert to fraction form
    192,067.20/287,733.60 = 103,291.20/x
  3. Step 3: Cross multiply
    192,067.20x = 287,733.60 × 103,291.20
  4. Step 4: Simplify right side
    192,067.20x = 29,720,348,824.32
  5. Step 5: Solve for x
    x = 29,720,348,824.32/192,067.20
  6. Step 6: Final answer
    x = 154,739.32

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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.