Finding the Fourth Proportional to 128,364.62, 192,569.88 and 44,103.02
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Solution
The fourth proportional to 128,364.62, 192,569.88 and 44,103.02 is: 66,162.42
Step by Step Solution
- Step 1: Write the proportion equation
128,364.62 : 192,569.88 = 44,103.02 : x - Step 2: Convert to fraction form
128,364.62/192,569.88 = 44,103.02/x - Step 3: Cross multiply
128,364.62x = 192,569.88 × 44,103.02 - Step 4: Simplify right side
128,364.62x = 8,492,913,269.04 - Step 5: Solve for x
x = 8,492,913,269.04/128,364.62 - Step 6: Final answer
x = 66,162.42
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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.