Finding the Fourth Proportional to 128,893.66, 193,294.35 and 44,631.19
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Solution
The fourth proportional to 128,893.66, 193,294.35 and 44,631.19 is: 66,930.81
Step by Step Solution
- Step 1: Write the proportion equation
128,893.66 : 193,294.35 = 44,631.19 : x - Step 2: Convert to fraction form
128,893.66/193,294.35 = 44,631.19/x - Step 3: Cross multiply
128,893.66x = 193,294.35 × 44,631.19 - Step 4: Simplify right side
128,893.66x = 8,626,956,860.78 - Step 5: Solve for x
x = 8,626,956,860.78/128,893.66 - Step 6: Final answer
x = 66,930.81
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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.