Finding the Fourth Proportional to 134,575.80, 201,863.70 and 99,324.60
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Solution
The fourth proportional to 134,575.80, 201,863.70 and 99,324.60 is: 148,986.90
Step by Step Solution
- Step 1: Write the proportion equation
134,575.80 : 201,863.70 = 99,324.60 : x - Step 2: Convert to fraction form
134,575.80/201,863.70 = 99,324.60/x - Step 3: Cross multiply
134,575.80x = 201,863.70 × 99,324.60 - Step 4: Simplify right side
134,575.80x = 20,050,031,257.02 - Step 5: Solve for x
x = 20,050,031,257.02/134,575.80 - Step 6: Final answer
x = 148,986.90
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Similar ratio
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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.