Finding the Fourth Proportional to 136,883.04, 188,987.49 and 122,517.96
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Solution
The fourth proportional to 136,883.04, 188,987.49 and 122,517.96 is: 169,154.35
Step by Step Solution
- Step 1: Write the proportion equation
136,883.04 : 188,987.49 = 122,517.96 : x - Step 2: Convert to fraction form
136,883.04/188,987.49 = 122,517.96/x - Step 3: Cross multiply
136,883.04x = 188,987.49 × 122,517.96 - Step 4: Simplify right side
136,883.04x = 23,154,361,740.32 - Step 5: Solve for x
x = 23,154,361,740.32/136,883.04 - Step 6: Final answer
x = 169,154.35
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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.