Finding the Fourth Proportional to 128,310.84, 192,411.24 and 44,079.48
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Solution
The fourth proportional to 128,310.84, 192,411.24 and 44,079.48 is: 66,100.32
Step by Step Solution
- Step 1: Write the proportion equation
128,310.84 : 192,411.24 = 44,079.48 : x - Step 2: Convert to fraction form
128,310.84/192,411.24 = 44,079.48/x - Step 3: Cross multiply
128,310.84x = 192,411.24 × 44,079.48 - Step 4: Simplify right side
128,310.84x = 8,481,387,405.36 - Step 5: Solve for x
x = 8,481,387,405.36/128,310.84 - Step 6: Final answer
x = 66,100.32
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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.