Finding the Fourth Proportional to 128,857.48, 193,292.70 and 44,621.80
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Solution
The fourth proportional to 128,857.48, 193,292.70 and 44,621.80 is: 66,934.94
Step by Step Solution
- Step 1: Write the proportion equation
128,857.48 : 193,292.70 = 44,621.80 : x - Step 2: Convert to fraction form
128,857.48/193,292.70 = 44,621.80/x - Step 3: Cross multiply
128,857.48x = 193,292.70 × 44,621.80 - Step 4: Simplify right side
128,857.48x = 8,625,068,200.86 - Step 5: Solve for x
x = 8,625,068,200.86/128,857.48 - Step 6: Final answer
x = 66,934.94
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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.