Finding the Fourth Proportional to 129,232.16, 193,810.80 and 50,328.80
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Solution
The fourth proportional to 129,232.16, 193,810.80 and 50,328.80 is: 75,478.62
Step by Step Solution
- Step 1: Write the proportion equation
129,232.16 : 193,810.80 = 50,328.80 : x - Step 2: Convert to fraction form
129,232.16/193,810.80 = 50,328.80/x - Step 3: Cross multiply
129,232.16x = 193,810.80 × 50,328.80 - Step 4: Simplify right side
129,232.16x = 9,754,264,991.04 - Step 5: Solve for x
x = 9,754,264,991.04/129,232.16 - Step 6: Final answer
x = 75,478.62
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1.5x scale
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.