Finding the Fourth Proportional to 95,590.40, 143,212.80 and 84,531.20
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Solution
The fourth proportional to 95,590.40, 143,212.80 and 84,531.20 is: 126,643.99
Step by Step Solution
- Step 1: Write the proportion equation
95,590.40 : 143,212.80 = 84,531.20 : x - Step 2: Convert to fraction form
95,590.40/143,212.80 = 84,531.20/x - Step 3: Cross multiply
95,590.40x = 143,212.80 × 84,531.20 - Step 4: Simplify right side
95,590.40x = 12,105,949,839.36 - Step 5: Solve for x
x = 12,105,949,839.36/95,590.40 - Step 6: Final answer
x = 126,643.99
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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.