Finding the Fourth Proportional to 128,855.21, 193,236.50 and 44,592.49
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Solution
The fourth proportional to 128,855.21, 193,236.50 and 44,592.49 is: 66,872.71
Step by Step Solution
- Step 1: Write the proportion equation
128,855.21 : 193,236.50 = 44,592.49 : x - Step 2: Convert to fraction form
128,855.21/193,236.50 = 44,592.49/x - Step 3: Cross multiply
128,855.21x = 193,236.50 × 44,592.49 - Step 4: Simplify right side
128,855.21x = 8,616,896,693.89 - Step 5: Solve for x
x = 8,616,896,693.89/128,855.21 - Step 6: Final answer
x = 66,872.71
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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.