Finding the Fourth Proportional to 111,418.91, 153,768.60 and 63,662.99
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Solution
The fourth proportional to 111,418.91, 153,768.60 and 63,662.99 is: 87,860.93
Step by Step Solution
- Step 1: Write the proportion equation
111,418.91 : 153,768.60 = 63,662.99 : x - Step 2: Convert to fraction form
111,418.91/153,768.60 = 63,662.99/x - Step 3: Cross multiply
111,418.91x = 153,768.60 × 63,662.99 - Step 4: Simplify right side
111,418.91x = 9,789,368,525.80 - Step 5: Solve for x
x = 9,789,368,525.80/111,418.91 - Step 6: Final answer
x = 87,860.93
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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.