Finding the Fourth Proportional to 119,311.75, 178,968.71 and 36,205.75
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Solution
The fourth proportional to 119,311.75, 178,968.71 and 36,205.75 is: 54,308.95
Step by Step Solution
- Step 1: Write the proportion equation
119,311.75 : 178,968.71 = 36,205.75 : x - Step 2: Convert to fraction form
119,311.75/178,968.71 = 36,205.75/x - Step 3: Cross multiply
119,311.75x = 178,968.71 × 36,205.75 - Step 4: Simplify right side
119,311.75x = 6,479,696,372.08 - Step 5: Solve for x
x = 6,479,696,372.08/119,311.75 - Step 6: Final answer
x = 54,308.95
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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.