Finding the Fourth Proportional to 128,311.98, 192,470.40 and 44,071.62
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Solution
The fourth proportional to 128,311.98, 192,470.40 and 44,071.62 is: 66,108.26
Step by Step Solution
- Step 1: Write the proportion equation
128,311.98 : 192,470.40 = 44,071.62 : x - Step 2: Convert to fraction form
128,311.98/192,470.40 = 44,071.62/x - Step 3: Cross multiply
128,311.98x = 192,470.40 × 44,071.62 - Step 4: Simplify right side
128,311.98x = 8,482,482,330.05 - Step 5: Solve for x
x = 8,482,482,330.05/128,311.98 - Step 6: Final answer
x = 66,108.26
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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.