Finding the Fourth Proportional to 102,708.44, 153,960.60 and 71,478.08
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Solution
The fourth proportional to 102,708.44, 153,960.60 and 71,478.08 is: 107,146.09
Step by Step Solution
- Step 1: Write the proportion equation
102,708.44 : 153,960.60 = 71,478.08 : x - Step 2: Convert to fraction form
102,708.44/153,960.60 = 71,478.08/x - Step 3: Cross multiply
102,708.44x = 153,960.60 × 71,478.08 - Step 4: Simplify right side
102,708.44x = 11,004,808,083.65 - Step 5: Solve for x
x = 11,004,808,083.65/102,708.44 - Step 6: Final answer
x = 107,146.09
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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.