Finding the Fourth Proportional to 125,006.99, 172,512.05 and 68,418.36
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Solution
The fourth proportional to 125,006.99, 172,512.05 and 68,418.36 is: 94,418.65
Step by Step Solution
- Step 1: Write the proportion equation
125,006.99 : 172,512.05 = 68,418.36 : x - Step 2: Convert to fraction form
125,006.99/172,512.05 = 68,418.36/x - Step 3: Cross multiply
125,006.99x = 172,512.05 × 68,418.36 - Step 4: Simplify right side
125,006.99x = 11,802,991,199.15 - Step 5: Solve for x
x = 11,802,991,199.15/125,006.99 - Step 6: Final answer
x = 94,418.65
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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.