Finding the Fourth Proportional to 188,093.12, 259,549.60 and 112,639.68
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Solution
The fourth proportional to 188,093.12, 259,549.60 and 112,639.68 is: 155,431.44
Step by Step Solution
- Step 1: Write the proportion equation
188,093.12 : 259,549.60 = 112,639.68 : x - Step 2: Convert to fraction form
188,093.12/259,549.60 = 112,639.68/x - Step 3: Cross multiply
188,093.12x = 259,549.60 × 112,639.68 - Step 4: Simplify right side
188,093.12x = 29,235,583,888.13 - Step 5: Solve for x
x = 29,235,583,888.13/188,093.12 - Step 6: Final answer
x = 155,431.44
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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.