Finding the Fourth Proportional to 145,915.20, 201,366.08 and 82,252.98
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Solution
The fourth proportional to 145,915.20, 201,366.08 and 82,252.98 is: 113,510.86
Step by Step Solution
- Step 1: Write the proportion equation
145,915.20 : 201,366.08 = 82,252.98 : x - Step 2: Convert to fraction form
145,915.20/201,366.08 = 82,252.98/x - Step 3: Cross multiply
145,915.20x = 201,366.08 × 82,252.98 - Step 4: Simplify right side
145,915.20x = 16,562,959,739.65 - Step 5: Solve for x
x = 16,562,959,739.65/145,915.20 - Step 6: Final answer
x = 113,510.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.