Finding the Fourth Proportional to 132,700.87, 198,558.01 and 79,419.48
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Solution
The fourth proportional to 132,700.87, 198,558.01 and 79,419.48 is: 118,833.99
Step by Step Solution
- Step 1: Write the proportion equation
132,700.87 : 198,558.01 = 79,419.48 : x - Step 2: Convert to fraction form
132,700.87/198,558.01 = 79,419.48/x - Step 3: Cross multiply
132,700.87x = 198,558.01 × 79,419.48 - Step 4: Simplify right side
132,700.87x = 15,769,373,904.03 - Step 5: Solve for x
x = 15,769,373,904.03/132,700.87 - Step 6: Final answer
x = 118,833.99
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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.