Finding the Fourth Proportional to 128,497.96, 192,643.02 and 53,675.41
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Solution
The fourth proportional to 128,497.96, 192,643.02 and 53,675.41 is: 80,469.71
Step by Step Solution
- Step 1: Write the proportion equation
128,497.96 : 192,643.02 = 53,675.41 : x - Step 2: Convert to fraction form
128,497.96/192,643.02 = 53,675.41/x - Step 3: Cross multiply
128,497.96x = 192,643.02 × 53,675.41 - Step 4: Simplify right side
128,497.96x = 10,340,193,082.14 - Step 5: Solve for x
x = 10,340,193,082.14/128,497.96 - Step 6: Final answer
x = 80,469.71
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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.