Finding the Fourth Proportional to 123,893.82, 170,959.75 and 68,701.75
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Solution
The fourth proportional to 123,893.82, 170,959.75 and 68,701.75 is: 94,800.81
Step by Step Solution
- Step 1: Write the proportion equation
123,893.82 : 170,959.75 = 68,701.75 : x - Step 2: Convert to fraction form
123,893.82/170,959.75 = 68,701.75/x - Step 3: Cross multiply
123,893.82x = 170,959.75 × 68,701.75 - Step 4: Simplify right side
123,893.82x = 11,745,234,004.56 - Step 5: Solve for x
x = 11,745,234,004.56/123,893.82 - Step 6: Final answer
x = 94,800.81
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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.