Finding the Fourth Proportional to 132,979.05, 183,485.99 and 79,269.08
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Solution
The fourth proportional to 132,979.05, 183,485.99 and 79,269.08 is: 109,376.36
Step by Step Solution
- Step 1: Write the proportion equation
132,979.05 : 183,485.99 = 79,269.08 : x - Step 2: Convert to fraction form
132,979.05/183,485.99 = 79,269.08/x - Step 3: Cross multiply
132,979.05x = 183,485.99 × 79,269.08 - Step 4: Simplify right side
132,979.05x = 14,544,764,306.41 - Step 5: Solve for x
x = 14,544,764,306.41/132,979.05 - Step 6: Final answer
x = 109,376.36
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.