Finding the Fourth Proportional to 159,755.49, 220,461.30 and 88,138.53
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Solution
The fourth proportional to 159,755.49, 220,461.30 and 88,138.53 is: 121,630.47
Step by Step Solution
- Step 1: Write the proportion equation
159,755.49 : 220,461.30 = 88,138.53 : x - Step 2: Convert to fraction form
159,755.49/220,461.30 = 88,138.53/x - Step 3: Cross multiply
159,755.49x = 220,461.30 × 88,138.53 - Step 4: Simplify right side
159,755.49x = 19,431,134,903.89 - Step 5: Solve for x
x = 19,431,134,903.89/159,755.49 - Step 6: Final answer
x = 121,630.47
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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.