Finding the Fourth Proportional to 132,998.75, 183,538.19 and 85,252.07
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Solution
The fourth proportional to 132,998.75, 183,538.19 and 85,252.07 is: 117,647.80
Step by Step Solution
- Step 1: Write the proportion equation
132,998.75 : 183,538.19 = 85,252.07 : x - Step 2: Convert to fraction form
132,998.75/183,538.19 = 85,252.07/x - Step 3: Cross multiply
132,998.75x = 183,538.19 × 85,252.07 - Step 4: Simplify right side
132,998.75x = 15,647,009,277.60 - Step 5: Solve for x
x = 15,647,009,277.60/132,998.75 - Step 6: Final answer
x = 117,647.80
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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.