Finding the Fourth Proportional to 138,173.75, 207,260.62 and 76,237.91
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Solution
The fourth proportional to 138,173.75, 207,260.62 and 76,237.91 is: 114,356.86
Step by Step Solution
- Step 1: Write the proportion equation
138,173.75 : 207,260.62 = 76,237.91 : x - Step 2: Convert to fraction form
138,173.75/207,260.62 = 76,237.91/x - Step 3: Cross multiply
138,173.75x = 207,260.62 × 76,237.91 - Step 4: Simplify right side
138,173.75x = 15,801,116,473.27 - Step 5: Solve for x
x = 15,801,116,473.27/138,173.75 - Step 6: Final answer
x = 114,356.86
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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.