Finding the Fourth Proportional to 130,504.05, 195,783.08 and 74,371.05
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Solution
The fourth proportional to 130,504.05, 195,783.08 and 74,371.05 is: 111,571.96
Step by Step Solution
- Step 1: Write the proportion equation
130,504.05 : 195,783.08 = 74,371.05 : x - Step 2: Convert to fraction form
130,504.05/195,783.08 = 74,371.05/x - Step 3: Cross multiply
130,504.05x = 195,783.08 × 74,371.05 - Step 4: Simplify right side
130,504.05x = 14,560,592,859.98 - Step 5: Solve for x
x = 14,560,592,859.98/130,504.05 - Step 6: Final answer
x = 111,571.96
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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.