Finding the Fourth Proportional to 111,705.86, 154,161.15 and 63,974.99
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Solution
The fourth proportional to 111,705.86, 154,161.15 and 63,974.99 is: 88,289.53
Step by Step Solution
- Step 1: Write the proportion equation
111,705.86 : 154,161.15 = 63,974.99 : x - Step 2: Convert to fraction form
111,705.86/154,161.15 = 63,974.99/x - Step 3: Cross multiply
111,705.86x = 154,161.15 × 63,974.99 - Step 4: Simplify right side
111,705.86x = 9,862,458,029.64 - Step 5: Solve for x
x = 9,862,458,029.64/111,705.86 - Step 6: Final answer
x = 88,289.53
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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.