Finding the Fourth Proportional to 112,805.08, 155,687.36 and 65,048.92
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Solution
The fourth proportional to 112,805.08, 155,687.36 and 65,048.92 is: 89,776.94
Step by Step Solution
- Step 1: Write the proportion equation
112,805.08 : 155,687.36 = 65,048.92 : x - Step 2: Convert to fraction form
112,805.08/155,687.36 = 65,048.92/x - Step 3: Cross multiply
112,805.08x = 155,687.36 × 65,048.92 - Step 4: Simplify right side
112,805.08x = 10,127,294,625.65 - Step 5: Solve for x
x = 10,127,294,625.65/112,805.08 - Step 6: Final answer
x = 89,776.94
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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.