Finding the Fourth Proportional to 168,053.24, 231,910.46 and 91,572.99
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Solution
The fourth proportional to 168,053.24, 231,910.46 and 91,572.99 is: 126,369.09
Step by Step Solution
- Step 1: Write the proportion equation
168,053.24 : 231,910.46 = 91,572.99 : x - Step 2: Convert to fraction form
168,053.24/231,910.46 = 91,572.99/x - Step 3: Cross multiply
168,053.24x = 231,910.46 × 91,572.99 - Step 4: Simplify right side
168,053.24x = 21,236,733,776.61 - Step 5: Solve for x
x = 21,236,733,776.61/168,053.24 - Step 6: Final answer
x = 126,369.09
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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.