Finding the Fourth Proportional to 112,636.80, 168,517.80 and 73,270.80
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Solution
The fourth proportional to 112,636.80, 168,517.80 and 73,270.80 is: 109,621.67
Step by Step Solution
- Step 1: Write the proportion equation
112,636.80 : 168,517.80 = 73,270.80 : x - Step 2: Convert to fraction form
112,636.80/168,517.80 = 73,270.80/x - Step 3: Cross multiply
112,636.80x = 168,517.80 × 73,270.80 - Step 4: Simplify right side
112,636.80x = 12,347,434,020.24 - Step 5: Solve for x
x = 12,347,434,020.24/112,636.80 - Step 6: Final answer
x = 109,621.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.