Finding the Fourth Proportional to 163,236.16, 225,266.86 and 90,640.08
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Solution
The fourth proportional to 163,236.16, 225,266.86 and 90,640.08 is: 125,083.84
Step by Step Solution
- Step 1: Write the proportion equation
163,236.16 : 225,266.86 = 90,640.08 : x - Step 2: Convert to fraction form
163,236.16/225,266.86 = 90,640.08/x - Step 3: Cross multiply
163,236.16x = 225,266.86 × 90,640.08 - Step 4: Simplify right side
163,236.16x = 20,418,206,211.75 - Step 5: Solve for x
x = 20,418,206,211.75/163,236.16 - Step 6: Final answer
x = 125,083.84
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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.