Finding the Fourth Proportional to 128,612.14, 192,927.42 and 44,371.06
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Solution
The fourth proportional to 128,612.14, 192,927.42 and 44,371.06 is: 66,559.76
Step by Step Solution
- Step 1: Write the proportion equation
128,612.14 : 192,927.42 = 44,371.06 : x - Step 2: Convert to fraction form
128,612.14/192,927.42 = 44,371.06/x - Step 3: Cross multiply
128,612.14x = 192,927.42 × 44,371.06 - Step 4: Simplify right side
128,612.14x = 8,560,393,646.15 - Step 5: Solve for x
x = 8,560,393,646.15/128,612.14 - Step 6: Final answer
x = 66,559.76
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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.