Finding the Fourth Proportional to 95,403.20, 143,104.80 and 86,217.80
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Solution
The fourth proportional to 95,403.20, 143,104.80 and 86,217.80 is: 129,326.70
Step by Step Solution
- Step 1: Write the proportion equation
95,403.20 : 143,104.80 = 86,217.80 : x - Step 2: Convert to fraction form
95,403.20/143,104.80 = 86,217.80/x - Step 3: Cross multiply
95,403.20x = 143,104.80 × 86,217.80 - Step 4: Simplify right side
95,403.20x = 12,338,181,025.44 - Step 5: Solve for x
x = 12,338,181,025.44/95,403.20 - Step 6: Final answer
x = 129,326.70
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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.