Finding the Fourth Proportional to 128,401.20, 192,497.34 and 53,577.08
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Solution
The fourth proportional to 128,401.20, 192,497.34 and 53,577.08 is: 80,322.03
Step by Step Solution
- Step 1: Write the proportion equation
128,401.20 : 192,497.34 = 53,577.08 : x - Step 2: Convert to fraction form
128,401.20/192,497.34 = 53,577.08/x - Step 3: Cross multiply
128,401.20x = 192,497.34 × 53,577.08 - Step 4: Simplify right side
128,401.20x = 10,313,445,345.26 - Step 5: Solve for x
x = 10,313,445,345.26/128,401.20 - Step 6: Final answer
x = 80,322.03
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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.