Finding the Fourth Proportional to 74,757.15, 102,954.92 and 73,124.19
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Solution
The fourth proportional to 74,757.15, 102,954.92 and 73,124.19 is: 100,706.02
Step by Step Solution
- Step 1: Write the proportion equation
74,757.15 : 102,954.92 = 73,124.19 : x - Step 2: Convert to fraction form
74,757.15/102,954.92 = 73,124.19/x - Step 3: Cross multiply
74,757.15x = 102,954.92 × 73,124.19 - Step 4: Simplify right side
74,757.15x = 7,528,494,765.89 - Step 5: Solve for x
x = 7,528,494,765.89/74,757.15 - Step 6: Final answer
x = 100,706.02
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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.