Finding the Fourth Proportional to 106,327.20, 159,490.80 and 96,485.70
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Solution
The fourth proportional to 106,327.20, 159,490.80 and 96,485.70 is: 144,728.55
Step by Step Solution
- Step 1: Write the proportion equation
106,327.20 : 159,490.80 = 96,485.70 : x - Step 2: Convert to fraction form
106,327.20/159,490.80 = 96,485.70/x - Step 3: Cross multiply
106,327.20x = 159,490.80 × 96,485.70 - Step 4: Simplify right side
106,327.20x = 15,388,581,481.56 - Step 5: Solve for x
x = 15,388,581,481.56/106,327.20 - Step 6: Final answer
x = 144,728.55
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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.