Finding the Fourth Proportional to 129,263.52, 193,998.96 and 66,951.84
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Solution
The fourth proportional to 129,263.52, 193,998.96 and 66,951.84 is: 100,481.46
Step by Step Solution
- Step 1: Write the proportion equation
129,263.52 : 193,998.96 = 66,951.84 : x - Step 2: Convert to fraction form
129,263.52/193,998.96 = 66,951.84/x - Step 3: Cross multiply
129,263.52x = 193,998.96 × 66,951.84 - Step 4: Simplify right side
129,263.52x = 12,988,587,330.09 - Step 5: Solve for x
x = 12,988,587,330.09/129,263.52 - Step 6: Final answer
x = 100,481.46
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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.