Finding the Fourth Proportional to 130,769.70, 195,967.41 and 74,493.68
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Solution
The fourth proportional to 130,769.70, 195,967.41 and 74,493.68 is: 111,633.91
Step by Step Solution
- Step 1: Write the proportion equation
130,769.70 : 195,967.41 = 74,493.68 : x - Step 2: Convert to fraction form
130,769.70/195,967.41 = 74,493.68/x - Step 3: Cross multiply
130,769.70x = 195,967.41 × 74,493.68 - Step 4: Simplify right side
130,769.70x = 14,598,332,551.13 - Step 5: Solve for x
x = 14,598,332,551.13/130,769.70 - Step 6: Final answer
x = 111,633.91
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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.