Finding the Fourth Proportional to 106,325.08, 146,738.98 and 79,420.92
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Solution
The fourth proportional to 106,325.08, 146,738.98 and 79,420.92 is: 109,608.62
Step by Step Solution
- Step 1: Write the proportion equation
106,325.08 : 146,738.98 = 79,420.92 : x - Step 2: Convert to fraction form
106,325.08/146,738.98 = 79,420.92/x - Step 3: Cross multiply
106,325.08x = 146,738.98 × 79,420.92 - Step 4: Simplify right side
106,325.08x = 11,654,144,791.46 - Step 5: Solve for x
x = 11,654,144,791.46/106,325.08 - Step 6: Final answer
x = 109,608.62
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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.