Finding the Fourth Proportional to 117,694.52, 176,371.39 and 81,141.99
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Solution
The fourth proportional to 117,694.52, 176,371.39 and 81,141.99 is: 121,595.51
Step by Step Solution
- Step 1: Write the proportion equation
117,694.52 : 176,371.39 = 81,141.99 : x - Step 2: Convert to fraction form
117,694.52/176,371.39 = 81,141.99/x - Step 3: Cross multiply
117,694.52x = 176,371.39 × 81,141.99 - Step 4: Simplify right side
117,694.52x = 14,311,125,003.70 - Step 5: Solve for x
x = 14,311,125,003.70/117,694.52 - Step 6: Final answer
x = 121,595.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.