Finding the Fourth Proportional to 128,771.19, 193,148.33 and 44,511.75
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Solution
The fourth proportional to 128,771.19, 193,148.33 and 44,511.75 is: 66,764.70
Step by Step Solution
- Step 1: Write the proportion equation
128,771.19 : 193,148.33 = 44,511.75 : x - Step 2: Convert to fraction form
128,771.19/193,148.33 = 44,511.75/x - Step 3: Cross multiply
128,771.19x = 193,148.33 × 44,511.75 - Step 4: Simplify right side
128,771.19x = 8,597,369,955.32 - Step 5: Solve for x
x = 8,597,369,955.32/128,771.19 - Step 6: Final answer
x = 66,764.70
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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.