Finding the Fourth Proportional to 128,466.14, 192,700.49 and 57,392.28
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Solution
The fourth proportional to 128,466.14, 192,700.49 and 57,392.28 is: 86,088.99
Step by Step Solution
- Step 1: Write the proportion equation
128,466.14 : 192,700.49 = 57,392.28 : x - Step 2: Convert to fraction form
128,466.14/192,700.49 = 57,392.28/x - Step 3: Cross multiply
128,466.14x = 192,700.49 × 57,392.28 - Step 4: Simplify right side
128,466.14x = 11,059,520,191.26 - Step 5: Solve for x
x = 11,059,520,191.26/128,466.14 - Step 6: Final answer
x = 86,088.99
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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.