Finding the Fourth Proportional to 128,498.92, 192,750.94 and 35,007.08
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Solution
The fourth proportional to 128,498.92, 192,750.94 and 35,007.08 is: 52,511.32
Step by Step Solution
- Step 1: Write the proportion equation
128,498.92 : 192,750.94 = 35,007.08 : x - Step 2: Convert to fraction form
128,498.92/192,750.94 = 35,007.08/x - Step 3: Cross multiply
128,498.92x = 192,750.94 × 35,007.08 - Step 4: Simplify right side
128,498.92x = 6,747,647,576.66 - Step 5: Solve for x
x = 6,747,647,576.66/128,498.92 - Step 6: Final answer
x = 52,511.32
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1.5x scale
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.