Finding the Fourth Proportional to 149,707.92, 206,589.68 and 85,171.08
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Solution
The fourth proportional to 149,707.92, 206,589.68 and 85,171.08 is: 117,531.96
Step by Step Solution
- Step 1: Write the proportion equation
149,707.92 : 206,589.68 = 85,171.08 : x - Step 2: Convert to fraction form
149,707.92/206,589.68 = 85,171.08/x - Step 3: Cross multiply
149,707.92x = 206,589.68 × 85,171.08 - Step 4: Simplify right side
149,707.92x = 17,595,465,736.60 - Step 5: Solve for x
x = 17,595,465,736.60/149,707.92 - Step 6: Final answer
x = 117,531.96
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1.5x scale
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.