Finding the Fourth Proportional to 99,841.78, 149,762.67 and 68,582.26
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Solution
The fourth proportional to 99,841.78, 149,762.67 and 68,582.26 is: 102,873.39
Step by Step Solution
- Step 1: Write the proportion equation
99,841.78 : 149,762.67 = 68,582.26 : x - Step 2: Convert to fraction form
99,841.78/149,762.67 = 68,582.26/x - Step 3: Cross multiply
99,841.78x = 149,762.67 × 68,582.26 - Step 4: Simplify right side
99,841.78x = 10,271,062,372.23 - Step 5: Solve for x
x = 10,271,062,372.23/99,841.78 - Step 6: Final answer
x = 102,873.39
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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.