Finding the Fourth Proportional to 168,122.57, 232,005.68 and 91,640.99
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Solution
The fourth proportional to 168,122.57, 232,005.68 and 91,640.99 is: 126,462.68
Step by Step Solution
- Step 1: Write the proportion equation
168,122.57 : 232,005.68 = 91,640.99 : x - Step 2: Convert to fraction form
168,122.57/232,005.68 = 91,640.99/x - Step 3: Cross multiply
168,122.57x = 232,005.68 × 91,640.99 - Step 4: Simplify right side
168,122.57x = 21,261,230,322.63 - Step 5: Solve for x
x = 21,261,230,322.63/168,122.57 - Step 6: Final answer
x = 126,462.68
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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.