Finding the Fourth Proportional to 75,232.80, 112,168.80 and 71,344.80
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Solution
The fourth proportional to 75,232.80, 112,168.80 and 71,344.80 is: 106,371.96
Step by Step Solution
- Step 1: Write the proportion equation
75,232.80 : 112,168.80 = 71,344.80 : x - Step 2: Convert to fraction form
75,232.80/112,168.80 = 71,344.80/x - Step 3: Cross multiply
75,232.80x = 112,168.80 × 71,344.80 - Step 4: Simplify right side
75,232.80x = 8,002,660,602.24 - Step 5: Solve for x
x = 8,002,660,602.24/75,232.80 - Step 6: Final answer
x = 106,371.96
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.