Finding the Fourth Proportional to 115,630.80, 173,446.20 and 68,197.20
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Solution
The fourth proportional to 115,630.80, 173,446.20 and 68,197.20 is: 102,295.80
Step by Step Solution
- Step 1: Write the proportion equation
115,630.80 : 173,446.20 = 68,197.20 : x - Step 2: Convert to fraction form
115,630.80/173,446.20 = 68,197.20/x - Step 3: Cross multiply
115,630.80x = 173,446.20 × 68,197.20 - Step 4: Simplify right side
115,630.80x = 11,828,545,190.64 - Step 5: Solve for x
x = 11,828,545,190.64/115,630.80 - Step 6: Final answer
x = 102,295.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.