Finding the Fourth Proportional to 132,855.26, 183,236.58 and 85,113.06
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Solution
The fourth proportional to 132,855.26, 183,236.58 and 85,113.06 is: 117,389.60
Step by Step Solution
- Step 1: Write the proportion equation
132,855.26 : 183,236.58 = 85,113.06 : x - Step 2: Convert to fraction form
132,855.26/183,236.58 = 85,113.06/x - Step 3: Cross multiply
132,855.26x = 183,236.58 × 85,113.06 - Step 4: Simplify right side
132,855.26x = 15,595,826,027.73 - Step 5: Solve for x
x = 15,595,826,027.73/132,855.26 - Step 6: Final answer
x = 117,389.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.