Finding the Fourth Proportional to 123,329.50, 170,195.94 and 66,742.09
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Solution
The fourth proportional to 123,329.50, 170,195.94 and 66,742.09 is: 92,104.75
Step by Step Solution
- Step 1: Write the proportion equation
123,329.50 : 170,195.94 = 66,742.09 : x - Step 2: Convert to fraction form
123,329.50/170,195.94 = 66,742.09/x - Step 3: Cross multiply
123,329.50x = 170,195.94 × 66,742.09 - Step 4: Simplify right side
123,329.50x = 11,359,232,745.11 - Step 5: Solve for x
x = 11,359,232,745.11/123,329.50 - Step 6: Final answer
x = 92,104.75
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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.