Finding the Fourth Proportional to 143,793.80, 215,528.70 and 68,949.80
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Solution
The fourth proportional to 143,793.80, 215,528.70 and 68,949.80 is: 103,347.02
Step by Step Solution
- Step 1: Write the proportion equation
143,793.80 : 215,528.70 = 68,949.80 : x - Step 2: Convert to fraction form
143,793.80/215,528.70 = 68,949.80/x - Step 3: Cross multiply
143,793.80x = 215,528.70 × 68,949.80 - Step 4: Simplify right side
143,793.80x = 14,860,660,759.26 - Step 5: Solve for x
x = 14,860,660,759.26/143,793.80 - Step 6: Final answer
x = 103,347.02
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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.