Finding the Fourth Proportional to 167,640.69, 231,352.57 and 103,998.99
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Solution
The fourth proportional to 167,640.69, 231,352.57 and 103,998.99 is: 143,523.83
Step by Step Solution
- Step 1: Write the proportion equation
167,640.69 : 231,352.57 = 103,998.99 : x - Step 2: Convert to fraction form
167,640.69/231,352.57 = 103,998.99/x - Step 3: Cross multiply
167,640.69x = 231,352.57 × 103,998.99 - Step 4: Simplify right side
167,640.69x = 24,060,433,613.90 - Step 5: Solve for x
x = 24,060,433,613.90/167,640.69 - Step 6: Final answer
x = 143,523.83
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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.