Finding the Fourth Proportional to 106,843.05, 147,442.68 and 63,842.18
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Solution
The fourth proportional to 106,843.05, 147,442.68 and 63,842.18 is: 88,101.77
Step by Step Solution
- Step 1: Write the proportion equation
106,843.05 : 147,442.68 = 63,842.18 : x - Step 2: Convert to fraction form
106,843.05/147,442.68 = 63,842.18/x - Step 3: Cross multiply
106,843.05x = 147,442.68 × 63,842.18 - Step 4: Simplify right side
106,843.05x = 9,413,061,379.03 - Step 5: Solve for x
x = 9,413,061,379.03/106,843.05 - Step 6: Final answer
x = 88,101.77
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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.