Finding the Fourth Proportional to 122,553.63, 169,139.79 and 68,838.63
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Solution
The fourth proportional to 122,553.63, 169,139.79 and 68,838.63 is: 95,006.18
Step by Step Solution
- Step 1: Write the proportion equation
122,553.63 : 169,139.79 = 68,838.63 : x - Step 2: Convert to fraction form
122,553.63/169,139.79 = 68,838.63/x - Step 3: Cross multiply
122,553.63x = 169,139.79 × 68,838.63 - Step 4: Simplify right side
122,553.63x = 11,643,351,680.23 - Step 5: Solve for x
x = 11,643,351,680.23/122,553.63 - Step 6: Final answer
x = 95,006.18
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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.