Finding the Fourth Proportional to 117,939.61, 176,876.57 and 39,059.99
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Solution
The fourth proportional to 117,939.61, 176,876.57 and 39,059.99 is: 58,579.10
Step by Step Solution
- Step 1: Write the proportion equation
117,939.61 : 176,876.57 = 39,059.99 : x - Step 2: Convert to fraction form
117,939.61/176,876.57 = 39,059.99/x - Step 3: Cross multiply
117,939.61x = 176,876.57 × 39,059.99 - Step 4: Simplify right side
117,939.61x = 6,908,796,268.70 - Step 5: Solve for x
x = 6,908,796,268.70/117,939.61 - Step 6: Final answer
x = 58,579.10
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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.