Finding the Fourth Proportional to 159,546.15, 220,173.74 and 86,949.08
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Solution
The fourth proportional to 159,546.15, 220,173.74 and 86,949.08 is: 119,989.75
Step by Step Solution
- Step 1: Write the proportion equation
159,546.15 : 220,173.74 = 86,949.08 : x - Step 2: Convert to fraction form
159,546.15/220,173.74 = 86,949.08/x - Step 3: Cross multiply
159,546.15x = 220,173.74 × 86,949.08 - Step 4: Simplify right side
159,546.15x = 19,143,902,597.55 - Step 5: Solve for x
x = 19,143,902,597.55/159,546.15 - Step 6: Final answer
x = 119,989.75
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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.