Finding the Fourth Proportional to 111,496.75, 153,865.52 and 61,198.99
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Solution
The fourth proportional to 111,496.75, 153,865.52 and 61,198.99 is: 84,454.61
Step by Step Solution
- Step 1: Write the proportion equation
111,496.75 : 153,865.52 = 61,198.99 : x - Step 2: Convert to fraction form
111,496.75/153,865.52 = 61,198.99/x - Step 3: Cross multiply
111,496.75x = 153,865.52 × 61,198.99 - Step 4: Simplify right side
111,496.75x = 9,416,414,419.82 - Step 5: Solve for x
x = 9,416,414,419.82/111,496.75 - Step 6: Final answer
x = 84,454.61
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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.