Finding the Fourth Proportional to 128,684.84, 192,761.58 and 95,442.44
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Solution
The fourth proportional to 128,684.84, 192,761.58 and 95,442.44 is: 142,966.61
Step by Step Solution
- Step 1: Write the proportion equation
128,684.84 : 192,761.58 = 95,442.44 : x - Step 2: Convert to fraction form
128,684.84/192,761.58 = 95,442.44/x - Step 3: Cross multiply
128,684.84x = 192,761.58 × 95,442.44 - Step 4: Simplify right side
128,684.84x = 18,397,635,533.46 - Step 5: Solve for x
x = 18,397,635,533.46/128,684.84 - Step 6: Final answer
x = 142,966.61
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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.