Finding the Fourth Proportional to 104,974.65, 144,864.65 and 57,227.99
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Solution
The fourth proportional to 104,974.65, 144,864.65 and 57,227.99 is: 78,974.42
Step by Step Solution
- Step 1: Write the proportion equation
104,974.65 : 144,864.65 = 57,227.99 : x - Step 2: Convert to fraction form
104,974.65/144,864.65 = 57,227.99/x - Step 3: Cross multiply
104,974.65x = 144,864.65 × 57,227.99 - Step 4: Simplify right side
104,974.65x = 8,290,312,160.30 - Step 5: Solve for x
x = 8,290,312,160.30/104,974.65 - Step 6: Final answer
x = 78,974.42
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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.