Finding the Fourth Proportional to 149,020.08, 205,589.40 and 85,324.08
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Solution
The fourth proportional to 149,020.08, 205,589.40 and 85,324.08 is: 117,713.84
Step by Step Solution
- Step 1: Write the proportion equation
149,020.08 : 205,589.40 = 85,324.08 : x - Step 2: Convert to fraction form
149,020.08/205,589.40 = 85,324.08/x - Step 3: Cross multiply
149,020.08x = 205,589.40 × 85,324.08 - Step 4: Simplify right side
149,020.08x = 17,541,726,412.75 - Step 5: Solve for x
x = 17,541,726,412.75/149,020.08 - Step 6: Final answer
x = 117,713.84
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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.