Finding the Fourth Proportional to 128,826.10, 193,252.40 and 44,586.11
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Solution
The fourth proportional to 128,826.10, 193,252.40 and 44,586.11 is: 66,883.75
Step by Step Solution
- Step 1: Write the proportion equation
128,826.10 : 193,252.40 = 44,586.11 : x - Step 2: Convert to fraction form
128,826.10/193,252.40 = 44,586.11/x - Step 3: Cross multiply
128,826.10x = 193,252.40 × 44,586.11 - Step 4: Simplify right side
128,826.10x = 8,616,372,764.16 - Step 5: Solve for x
x = 8,616,372,764.16/128,826.10 - Step 6: Final answer
x = 66,883.75
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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.