Finding the Fourth Proportional to 103,669.18, 155,481.21 and 40,468.96
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Solution
The fourth proportional to 103,669.18, 155,481.21 and 40,468.96 is: 60,694.63
Step by Step Solution
- Step 1: Write the proportion equation
103,669.18 : 155,481.21 = 40,468.96 : x - Step 2: Convert to fraction form
103,669.18/155,481.21 = 40,468.96/x - Step 3: Cross multiply
103,669.18x = 155,481.21 × 40,468.96 - Step 4: Simplify right side
103,669.18x = 6,292,162,868.24 - Step 5: Solve for x
x = 6,292,162,868.24/103,669.18 - Step 6: Final answer
x = 60,694.63
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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.