Finding the Fourth Proportional to 128,510.84, 192,729.26 and 44,267.60
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Solution
The fourth proportional to 128,510.84, 192,729.26 and 44,267.60 is: 66,388.65
Step by Step Solution
- Step 1: Write the proportion equation
128,510.84 : 192,729.26 = 44,267.60 : x - Step 2: Convert to fraction form
128,510.84/192,729.26 = 44,267.60/x - Step 3: Cross multiply
128,510.84x = 192,729.26 × 44,267.60 - Step 4: Simplify right side
128,510.84x = 8,531,661,789.98 - Step 5: Solve for x
x = 8,531,661,789.98/128,510.84 - Step 6: Final answer
x = 66,388.65
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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.