Finding the Fourth Proportional to 118,449.21, 177,701.67 and 38,486.91
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Solution
The fourth proportional to 118,449.21, 177,701.67 and 38,486.91 is: 57,739.42
Step by Step Solution
- Step 1: Write the proportion equation
118,449.21 : 177,701.67 = 38,486.91 : x - Step 2: Convert to fraction form
118,449.21/177,701.67 = 38,486.91/x - Step 3: Cross multiply
118,449.21x = 177,701.67 × 38,486.91 - Step 4: Simplify right side
118,449.21x = 6,839,188,180.14 - Step 5: Solve for x
x = 6,839,188,180.14/118,449.21 - Step 6: Final answer
x = 57,739.42
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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.