Finding the Fourth Proportional to 149,836.44, 206,778.35 and 89,442.12
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Solution
The fourth proportional to 149,836.44, 206,778.35 and 89,442.12 is: 123,432.55
Step by Step Solution
- Step 1: Write the proportion equation
149,836.44 : 206,778.35 = 89,442.12 : x - Step 2: Convert to fraction form
149,836.44/206,778.35 = 89,442.12/x - Step 3: Cross multiply
149,836.44x = 206,778.35 × 89,442.12 - Step 4: Simplify right side
149,836.44x = 18,494,693,546.89 - Step 5: Solve for x
x = 18,494,693,546.89/149,836.44 - Step 6: Final answer
x = 123,432.55
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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.