Finding the Fourth Proportional to 138,329.14, 207,362.48 and 68,126.44
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Solution
The fourth proportional to 138,329.14, 207,362.48 and 68,126.44 is: 102,125.03
Step by Step Solution
- Step 1: Write the proportion equation
138,329.14 : 207,362.48 = 68,126.44 : x - Step 2: Convert to fraction form
138,329.14/207,362.48 = 68,126.44/x - Step 3: Cross multiply
138,329.14x = 207,362.48 × 68,126.44 - Step 4: Simplify right side
138,329.14x = 14,126,867,551.97 - Step 5: Solve for x
x = 14,126,867,551.97/138,329.14 - Step 6: Final answer
x = 102,125.03
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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.