Finding the Fourth Proportional to 128,340.84, 192,544.04 and 53,436.08
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Solution
The fourth proportional to 128,340.84, 192,544.04 and 53,436.08 is: 80,167.77
Step by Step Solution
- Step 1: Write the proportion equation
128,340.84 : 192,544.04 = 53,436.08 : x - Step 2: Convert to fraction form
128,340.84/192,544.04 = 53,436.08/x - Step 3: Cross multiply
128,340.84x = 192,544.04 × 53,436.08 - Step 4: Simplify right side
128,340.84x = 10,288,798,724.96 - Step 5: Solve for x
x = 10,288,798,724.96/128,340.84 - Step 6: Final answer
x = 80,167.77
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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.