Finding the Fourth Proportional to 106,362.40, 146,772.12 and 58,615.96
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Solution
The fourth proportional to 106,362.40, 146,772.12 and 58,615.96 is: 80,885.62
Step by Step Solution
- Step 1: Write the proportion equation
106,362.40 : 146,772.12 = 58,615.96 : x - Step 2: Convert to fraction form
106,362.40/146,772.12 = 58,615.96/x - Step 3: Cross multiply
106,362.40x = 146,772.12 × 58,615.96 - Step 4: Simplify right side
106,362.40x = 8,603,188,715.04 - Step 5: Solve for x
x = 8,603,188,715.04/106,362.40 - Step 6: Final answer
x = 80,885.62
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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.