Finding the Fourth Proportional to 108,485.93, 149,708.91 and 60,740.99
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Solution
The fourth proportional to 108,485.93, 149,708.91 and 60,740.99 is: 83,821.62
Step by Step Solution
- Step 1: Write the proportion equation
108,485.93 : 149,708.91 = 60,740.99 : x - Step 2: Convert to fraction form
108,485.93/149,708.91 = 60,740.99/x - Step 3: Cross multiply
108,485.93x = 149,708.91 × 60,740.99 - Step 4: Simplify right side
108,485.93x = 9,093,466,352.97 - Step 5: Solve for x
x = 9,093,466,352.97/108,485.93 - Step 6: Final answer
x = 83,821.62
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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.