Finding the Fourth Proportional to 103,687.14, 155,529.68 and 47,511.31
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Solution
The fourth proportional to 103,687.14, 155,529.68 and 47,511.31 is: 71,266.49
Step by Step Solution
- Step 1: Write the proportion equation
103,687.14 : 155,529.68 = 47,511.31 : x - Step 2: Convert to fraction form
103,687.14/155,529.68 = 47,511.31/x - Step 3: Cross multiply
103,687.14x = 155,529.68 × 47,511.31 - Step 4: Simplify right side
103,687.14x = 7,389,418,840.68 - Step 5: Solve for x
x = 7,389,418,840.68/103,687.14 - Step 6: Final answer
x = 71,266.49
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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.