Finding the Fourth Proportional to 128,170.40, 192,282.84 and 43,907.96
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Solution
The fourth proportional to 128,170.40, 192,282.84 and 43,907.96 is: 65,871.27
Step by Step Solution
- Step 1: Write the proportion equation
128,170.40 : 192,282.84 = 43,907.96 : x - Step 2: Convert to fraction form
128,170.40/192,282.84 = 43,907.96/x - Step 3: Cross multiply
128,170.40x = 192,282.84 × 43,907.96 - Step 4: Simplify right side
128,170.40x = 8,442,746,285.99 - Step 5: Solve for x
x = 8,442,746,285.99/128,170.40 - Step 6: Final answer
x = 65,871.27
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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.