Finding the Fourth Proportional to 103,687.21, 155,551.16 and 47,528.70
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Solution
The fourth proportional to 103,687.21, 155,551.16 and 47,528.70 is: 71,302.38
Step by Step Solution
- Step 1: Write the proportion equation
103,687.21 : 155,551.16 = 47,528.70 : x - Step 2: Convert to fraction form
103,687.21/155,551.16 = 47,528.70/x - Step 3: Cross multiply
103,687.21x = 155,551.16 × 47,528.70 - Step 4: Simplify right side
103,687.21x = 7,393,144,418.29 - Step 5: Solve for x
x = 7,393,144,418.29/103,687.21 - Step 6: Final answer
x = 71,302.38
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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.