Finding the Fourth Proportional to 128,374.10, 192,513.99 and 44,110.35
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Solution
The fourth proportional to 128,374.10, 192,513.99 and 44,110.35 is: 66,149.32
Step by Step Solution
- Step 1: Write the proportion equation
128,374.10 : 192,513.99 = 44,110.35 : x - Step 2: Convert to fraction form
128,374.10/192,513.99 = 44,110.35/x - Step 3: Cross multiply
128,374.10x = 192,513.99 × 44,110.35 - Step 4: Simplify right side
128,374.10x = 8,491,859,478.80 - Step 5: Solve for x
x = 8,491,859,478.80/128,374.10 - Step 6: Final answer
x = 66,149.32
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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.