Finding the Fourth Proportional to 161,278.63, 222,572.10 and 89,659.84
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Solution
The fourth proportional to 161,278.63, 222,572.10 and 89,659.84 is: 123,734.80
Step by Step Solution
- Step 1: Write the proportion equation
161,278.63 : 222,572.10 = 89,659.84 : x - Step 2: Convert to fraction form
161,278.63/222,572.10 = 89,659.84/x - Step 3: Cross multiply
161,278.63x = 222,572.10 × 89,659.84 - Step 4: Simplify right side
161,278.63x = 19,955,778,874.46 - Step 5: Solve for x
x = 19,955,778,874.46/161,278.63 - Step 6: Final answer
x = 123,734.80
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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.