Finding the Fourth Proportional to 175,749.12, 263,486.88 and 91,471.68
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Solution
The fourth proportional to 175,749.12, 263,486.88 and 91,471.68 is: 137,136.32
Step by Step Solution
- Step 1: Write the proportion equation
175,749.12 : 263,486.88 = 91,471.68 : x - Step 2: Convert to fraction form
175,749.12/263,486.88 = 91,471.68/x - Step 3: Cross multiply
175,749.12x = 263,486.88 × 91,471.68 - Step 4: Simplify right side
175,749.12x = 24,101,587,571.56 - Step 5: Solve for x
x = 24,101,587,571.56/175,749.12 - Step 6: Final answer
x = 137,136.32
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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.