Finding the Fourth Proportional to 128,590.21, 192,894.58 and 44,349.19
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Solution
The fourth proportional to 128,590.21, 192,894.58 and 44,349.19 is: 66,526.98
Step by Step Solution
- Step 1: Write the proportion equation
128,590.21 : 192,894.58 = 44,349.19 : x - Step 2: Convert to fraction form
128,590.21/192,894.58 = 44,349.19/x - Step 3: Cross multiply
128,590.21x = 192,894.58 × 44,349.19 - Step 4: Simplify right side
128,590.21x = 8,554,717,951.59 - Step 5: Solve for x
x = 8,554,717,951.59/128,590.21 - Step 6: Final answer
x = 66,526.98
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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.