Finding the Fourth Proportional to 120,259.99, 180,452.23 and 87,252.49
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Solution
The fourth proportional to 120,259.99, 180,452.23 and 87,252.49 is: 130,923.90
Step by Step Solution
- Step 1: Write the proportion equation
120,259.99 : 180,452.23 = 87,252.49 : x - Step 2: Convert to fraction form
120,259.99/180,452.23 = 87,252.49/x - Step 3: Cross multiply
120,259.99x = 180,452.23 × 87,252.49 - Step 4: Simplify right side
120,259.99x = 15,744,906,393.55 - Step 5: Solve for x
x = 15,744,906,393.55/120,259.99 - Step 6: Final answer
x = 130,923.90
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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.