Finding the Fourth Proportional to 129,277.20, 193,915.80 and 94,285.20
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Solution
The fourth proportional to 129,277.20, 193,915.80 and 94,285.20 is: 141,427.80
Step by Step Solution
- Step 1: Write the proportion equation
129,277.20 : 193,915.80 = 94,285.20 : x - Step 2: Convert to fraction form
129,277.20/193,915.80 = 94,285.20/x - Step 3: Cross multiply
129,277.20x = 193,915.80 × 94,285.20 - Step 4: Simplify right side
129,277.20x = 18,283,389,986.16 - Step 5: Solve for x
x = 18,283,389,986.16/129,277.20 - Step 6: Final answer
x = 141,427.80
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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.