Finding the Fourth Proportional to 128,283.21, 192,453.17 and 44,041.46
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Solution
The fourth proportional to 128,283.21, 192,453.17 and 44,041.46 is: 66,071.92
Step by Step Solution
- Step 1: Write the proportion equation
128,283.21 : 192,453.17 = 44,041.46 : x - Step 2: Convert to fraction form
128,283.21/192,453.17 = 44,041.46/x - Step 3: Cross multiply
128,283.21x = 192,453.17 × 44,041.46 - Step 4: Simplify right side
128,283.21x = 8,475,917,405.96 - Step 5: Solve for x
x = 8,475,917,405.96/128,283.21 - Step 6: Final answer
x = 66,071.92
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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.