Finding the Fourth Proportional to 124,817.94, 172,251.49 and 68,229.31
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Solution
The fourth proportional to 124,817.94, 172,251.49 and 68,229.31 is: 94,157.94
Step by Step Solution
- Step 1: Write the proportion equation
124,817.94 : 172,251.49 = 68,229.31 : x - Step 2: Convert to fraction form
124,817.94/172,251.49 = 68,229.31/x - Step 3: Cross multiply
124,817.94x = 172,251.49 × 68,229.31 - Step 4: Simplify right side
124,817.94x = 11,752,600,309.17 - Step 5: Solve for x
x = 11,752,600,309.17/124,817.94 - Step 6: Final answer
x = 94,157.94
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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.