Finding the Fourth Proportional to 123,482.61, 170,405.99 and 66,893.99
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Solution
The fourth proportional to 123,482.61, 170,405.99 and 66,893.99 is: 92,313.70
Step by Step Solution
- Step 1: Write the proportion equation
123,482.61 : 170,405.99 = 66,893.99 : x - Step 2: Convert to fraction form
123,482.61/170,405.99 = 66,893.99/x - Step 3: Cross multiply
123,482.61x = 170,405.99 × 66,893.99 - Step 4: Simplify right side
123,482.61x = 11,399,136,031.63 - Step 5: Solve for x
x = 11,399,136,031.63/123,482.61 - Step 6: Final answer
x = 92,313.70
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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.