Finding the Fourth Proportional to 128,324.08, 192,436.80 and 44,068.48
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Solution
The fourth proportional to 128,324.08, 192,436.80 and 44,068.48 is: 66,085.78
Step by Step Solution
- Step 1: Write the proportion equation
128,324.08 : 192,436.80 = 44,068.48 : x - Step 2: Convert to fraction form
128,324.08/192,436.80 = 44,068.48/x - Step 3: Cross multiply
128,324.08x = 192,436.80 × 44,068.48 - Step 4: Simplify right side
128,324.08x = 8,480,397,272.06 - Step 5: Solve for x
x = 8,480,397,272.06/128,324.08 - Step 6: Final answer
x = 66,085.78
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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.