Finding the Fourth Proportional to 106,805.61, 147,391.08 and 63,804.63
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Solution
The fourth proportional to 106,805.61, 147,391.08 and 63,804.63 is: 88,049.99
Step by Step Solution
- Step 1: Write the proportion equation
106,805.61 : 147,391.08 = 63,804.63 : x - Step 2: Convert to fraction form
106,805.61/147,391.08 = 63,804.63/x - Step 3: Cross multiply
106,805.61x = 147,391.08 × 63,804.63 - Step 4: Simplify right side
106,805.61x = 9,404,233,324.70 - Step 5: Solve for x
x = 9,404,233,324.70/106,805.61 - Step 6: Final answer
x = 88,049.99
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1.5x scale
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.