Finding the Fourth Proportional to 106,930.24, 147,474.24 and 80,135.68
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Solution
The fourth proportional to 106,930.24, 147,474.24 and 80,135.68 is: 110,520.17
Step by Step Solution
- Step 1: Write the proportion equation
106,930.24 : 147,474.24 = 80,135.68 : x - Step 2: Convert to fraction form
106,930.24/147,474.24 = 80,135.68/x - Step 3: Cross multiply
106,930.24x = 147,474.24 × 80,135.68 - Step 4: Simplify right side
106,930.24x = 11,817,948,504.88 - Step 5: Solve for x
x = 11,817,948,504.88/106,930.24 - Step 6: Final answer
x = 110,520.17
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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.