Finding the Fourth Proportional to 143,670.75, 198,163.67 and 122,010.95
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Solution
The fourth proportional to 143,670.75, 198,163.67 and 122,010.95 is: 168,288.51
Step by Step Solution
- Step 1: Write the proportion equation
143,670.75 : 198,163.67 = 122,010.95 : x - Step 2: Convert to fraction form
143,670.75/198,163.67 = 122,010.95/x - Step 3: Cross multiply
143,670.75x = 198,163.67 × 122,010.95 - Step 4: Simplify right side
143,670.75x = 24,178,136,031.31 - Step 5: Solve for x
x = 24,178,136,031.31/143,670.75 - Step 6: Final answer
x = 168,288.51
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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.