Finding the Fourth Proportional to 102,707.44, 153,959.10 and 71,477.08
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Solution
The fourth proportional to 102,707.44, 153,959.10 and 71,477.08 is: 107,144.59
Step by Step Solution
- Step 1: Write the proportion equation
102,707.44 : 153,959.10 = 71,477.08 : x - Step 2: Convert to fraction form
102,707.44/153,959.10 = 71,477.08/x - Step 3: Cross multiply
102,707.44x = 153,959.10 × 71,477.08 - Step 4: Simplify right side
102,707.44x = 11,004,546,907.43 - Step 5: Solve for x
x = 11,004,546,907.43/102,707.44 - Step 6: Final answer
x = 107,144.59
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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.