Finding the Fourth Proportional to 146,972.81, 202,821.63 and 81,560.98
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Solution
The fourth proportional to 146,972.81, 202,821.63 and 81,560.98 is: 112,553.68
Step by Step Solution
- Step 1: Write the proportion equation
146,972.81 : 202,821.63 = 81,560.98 : x - Step 2: Convert to fraction form
146,972.81/202,821.63 = 81,560.98/x - Step 3: Cross multiply
146,972.81x = 202,821.63 × 81,560.98 - Step 4: Simplify right side
146,972.81x = 16,542,330,908.00 - Step 5: Solve for x
x = 16,542,330,908.00/146,972.81 - Step 6: Final answer
x = 112,553.68
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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.