Finding the Fourth Proportional to 128,504.92, 192,759.94 and 35,013.08
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Solution
The fourth proportional to 128,504.92, 192,759.94 and 35,013.08 is: 52,520.32
Step by Step Solution
- Step 1: Write the proportion equation
128,504.92 : 192,759.94 = 35,013.08 : x - Step 2: Convert to fraction form
128,504.92/192,759.94 = 35,013.08/x - Step 3: Cross multiply
128,504.92x = 192,759.94 × 35,013.08 - Step 4: Simplify right side
128,504.92x = 6,749,119,200.02 - Step 5: Solve for x
x = 6,749,119,200.02/128,504.92 - Step 6: Final answer
x = 52,520.32
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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.