Finding the Fourth Proportional to 115,993.13, 160,067.79 and 68,249.57
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Solution
The fourth proportional to 115,993.13, 160,067.79 and 68,249.57 is: 94,182.80
Step by Step Solution
- Step 1: Write the proportion equation
115,993.13 : 160,067.79 = 68,249.57 : x - Step 2: Convert to fraction form
115,993.13/160,067.79 = 68,249.57/x - Step 3: Cross multiply
115,993.13x = 160,067.79 × 68,249.57 - Step 4: Simplify right side
115,993.13x = 10,924,557,038.01 - Step 5: Solve for x
x = 10,924,557,038.01/115,993.13 - Step 6: Final answer
x = 94,182.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.