Finding the Fourth Proportional to 137,605.36, 206,466.48 and 75,202.96
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Solution
The fourth proportional to 137,605.36, 206,466.48 and 75,202.96 is: 112,836.38
Step by Step Solution
- Step 1: Write the proportion equation
137,605.36 : 206,466.48 = 75,202.96 : x - Step 2: Convert to fraction form
137,605.36/206,466.48 = 75,202.96/x - Step 3: Cross multiply
137,605.36x = 206,466.48 × 75,202.96 - Step 4: Simplify right side
137,605.36x = 15,526,890,436.78 - Step 5: Solve for x
x = 15,526,890,436.78/137,605.36 - Step 6: Final answer
x = 112,836.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.