Finding the Fourth Proportional to 131,442.60, 197,163.90 and 48,325.80
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Solution
The fourth proportional to 131,442.60, 197,163.90 and 48,325.80 is: 72,488.70
Step by Step Solution
- Step 1: Write the proportion equation
131,442.60 : 197,163.90 = 48,325.80 : x - Step 2: Convert to fraction form
131,442.60/197,163.90 = 48,325.80/x - Step 3: Cross multiply
131,442.60x = 197,163.90 × 48,325.80 - Step 4: Simplify right side
131,442.60x = 9,528,103,198.62 - Step 5: Solve for x
x = 9,528,103,198.62/131,442.60 - Step 6: Final answer
x = 72,488.70
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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.