Finding the Fourth Proportional to 120,852.36, 181,125.18 and 68,291.28
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Solution
The fourth proportional to 120,852.36, 181,125.18 and 68,291.28 is: 102,350.26
Step by Step Solution
- Step 1: Write the proportion equation
120,852.36 : 181,125.18 = 68,291.28 : x - Step 2: Convert to fraction form
120,852.36/181,125.18 = 68,291.28/x - Step 3: Cross multiply
120,852.36x = 181,125.18 × 68,291.28 - Step 4: Simplify right side
120,852.36x = 12,369,270,382.43 - Step 5: Solve for x
x = 12,369,270,382.43/120,852.36 - Step 6: Final answer
x = 102,350.26
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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.