Finding the Fourth Proportional to 161,318.84, 222,625.14 and 89,701.88
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Solution
The fourth proportional to 161,318.84, 222,625.14 and 89,701.88 is: 123,791.45
Step by Step Solution
- Step 1: Write the proportion equation
161,318.84 : 222,625.14 = 89,701.88 : x - Step 2: Convert to fraction form
161,318.84/222,625.14 = 89,701.88/x - Step 3: Cross multiply
161,318.84x = 222,625.14 × 89,701.88 - Step 4: Simplify right side
161,318.84x = 19,969,893,593.26 - Step 5: Solve for x
x = 19,969,893,593.26/161,318.84 - Step 6: Final answer
x = 123,791.45
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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.