Finding the Fourth Proportional to 88,086.36, 121,424.94 and 69,190.68
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Solution
The fourth proportional to 88,086.36, 121,424.94 and 69,190.68 is: 95,377.70
Step by Step Solution
- Step 1: Write the proportion equation
88,086.36 : 121,424.94 = 69,190.68 : x - Step 2: Convert to fraction form
88,086.36/121,424.94 = 69,190.68/x - Step 3: Cross multiply
88,086.36x = 121,424.94 × 69,190.68 - Step 4: Simplify right side
88,086.36x = 8,401,474,167.56 - Step 5: Solve for x
x = 8,401,474,167.56/88,086.36 - Step 6: Final answer
x = 95,377.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.