Finding the Fourth Proportional to 140,233.62, 193,520.97 and 86,497.14
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Solution
The fourth proportional to 140,233.62, 193,520.97 and 86,497.14 is: 119,365.17
Step by Step Solution
- Step 1: Write the proportion equation
140,233.62 : 193,520.97 = 86,497.14 : x - Step 2: Convert to fraction form
140,233.62/193,520.97 = 86,497.14/x - Step 3: Cross multiply
140,233.62x = 193,520.97 × 86,497.14 - Step 4: Simplify right side
140,233.62x = 16,739,010,435.03 - Step 5: Solve for x
x = 16,739,010,435.03/140,233.62 - Step 6: Final answer
x = 119,365.17
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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.