Finding the Fourth Proportional to 128,203.96, 192,283.72 and 34,687.84
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Solution
The fourth proportional to 128,203.96, 192,283.72 and 34,687.84 is: 52,025.75
Step by Step Solution
- Step 1: Write the proportion equation
128,203.96 : 192,283.72 = 34,687.84 : x - Step 2: Convert to fraction form
128,203.96/192,283.72 = 34,687.84/x - Step 3: Cross multiply
128,203.96x = 192,283.72 × 34,687.84 - Step 4: Simplify right side
128,203.96x = 6,669,906,913.96 - Step 5: Solve for x
x = 6,669,906,913.96/128,203.96 - Step 6: Final answer
x = 52,025.75
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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.