Finding the Fourth Proportional to 136,268.36, 188,006.58 and 82,536.20
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Solution
The fourth proportional to 136,268.36, 188,006.58 and 82,536.20 is: 113,873.45
Step by Step Solution
- Step 1: Write the proportion equation
136,268.36 : 188,006.58 = 82,536.20 : x - Step 2: Convert to fraction form
136,268.36/188,006.58 = 82,536.20/x - Step 3: Cross multiply
136,268.36x = 188,006.58 × 82,536.20 - Step 4: Simplify right side
136,268.36x = 15,517,348,688.20 - Step 5: Solve for x
x = 15,517,348,688.20/136,268.36 - Step 6: Final answer
x = 113,873.45
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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.