Finding the Fourth Proportional to 103,696.01, 155,542.99 and 47,520.18
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Solution
The fourth proportional to 103,696.01, 155,542.99 and 47,520.18 is: 71,279.80
Step by Step Solution
- Step 1: Write the proportion equation
103,696.01 : 155,542.99 = 47,520.18 : x - Step 2: Convert to fraction form
103,696.01/155,542.99 = 47,520.18/x - Step 3: Cross multiply
103,696.01x = 155,542.99 × 47,520.18 - Step 4: Simplify right side
103,696.01x = 7,391,430,882.54 - Step 5: Solve for x
x = 7,391,430,882.54/103,696.01 - Step 6: Final answer
x = 71,279.80
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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.