Finding the Fourth Proportional to 131,331.70, 196,924.65 and 52,356.70
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Solution
The fourth proportional to 131,331.70, 196,924.65 and 52,356.70 is: 78,505.99
Step by Step Solution
- Step 1: Write the proportion equation
131,331.70 : 196,924.65 = 52,356.70 : x - Step 2: Convert to fraction form
131,331.70/196,924.65 = 52,356.70/x - Step 3: Cross multiply
131,331.70x = 196,924.65 × 52,356.70 - Step 4: Simplify right side
131,331.70x = 10,310,324,822.66 - Step 5: Solve for x
x = 10,310,324,822.66/131,331.70 - Step 6: Final answer
x = 78,505.99
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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.