Finding the Fourth Proportional to 159,839.19, 220,577.63 and 88,218.70
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Solution
The fourth proportional to 159,839.19, 220,577.63 and 88,218.70 is: 121,741.55
Step by Step Solution
- Step 1: Write the proportion equation
159,839.19 : 220,577.63 = 88,218.70 : x - Step 2: Convert to fraction form
159,839.19/220,577.63 = 88,218.70/x - Step 3: Cross multiply
159,839.19x = 220,577.63 × 88,218.70 - Step 4: Simplify right side
159,839.19x = 19,459,070,775.14 - Step 5: Solve for x
x = 19,459,070,775.14/159,839.19 - Step 6: Final answer
x = 121,741.55
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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.