Finding the Fourth Proportional to 135,138.80, 202,708.20 and 56,244.80
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Solution
The fourth proportional to 135,138.80, 202,708.20 and 56,244.80 is: 84,367.20
Step by Step Solution
- Step 1: Write the proportion equation
135,138.80 : 202,708.20 = 56,244.80 : x - Step 2: Convert to fraction form
135,138.80/202,708.20 = 56,244.80/x - Step 3: Cross multiply
135,138.80x = 202,708.20 × 56,244.80 - Step 4: Simplify right side
135,138.80x = 11,401,282,167.36 - Step 5: Solve for x
x = 11,401,282,167.36/135,138.80 - Step 6: Final answer
x = 84,367.20
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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.