Finding the Fourth Proportional to 149,702.53, 206,589.99 and 81,721.00
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Solution
The fourth proportional to 149,702.53, 206,589.99 and 81,721.00 is: 112,775.26
Step by Step Solution
- Step 1: Write the proportion equation
149,702.53 : 206,589.99 = 81,721.00 : x - Step 2: Convert to fraction form
149,702.53/206,589.99 = 81,721.00/x - Step 3: Cross multiply
149,702.53x = 206,589.99 × 81,721.00 - Step 4: Simplify right side
149,702.53x = 16,882,741,137.48 - Step 5: Solve for x
x = 16,882,741,137.48/149,702.53 - Step 6: Final answer
x = 112,775.26
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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.