Finding the Fourth Proportional to 106,765.92, 147,351.60 and 61,442.96
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Solution
The fourth proportional to 106,765.92, 147,351.60 and 61,442.96 is: 84,799.70
Step by Step Solution
- Step 1: Write the proportion equation
106,765.92 : 147,351.60 = 61,442.96 : x - Step 2: Convert to fraction form
106,765.92/147,351.60 = 61,442.96/x - Step 3: Cross multiply
106,765.92x = 147,351.60 × 61,442.96 - Step 4: Simplify right side
106,765.92x = 9,053,717,727.98 - Step 5: Solve for x
x = 9,053,717,727.98/106,765.92 - Step 6: Final answer
x = 84,799.70
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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.