Finding the Fourth Proportional to 147,713.20, 221,310.60 and 121,274.80
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Solution
The fourth proportional to 147,713.20, 221,310.60 and 121,274.80 is: 181,699.39
Step by Step Solution
- Step 1: Write the proportion equation
147,713.20 : 221,310.60 = 121,274.80 : x - Step 2: Convert to fraction form
147,713.20/221,310.60 = 121,274.80/x - Step 3: Cross multiply
147,713.20x = 221,310.60 × 121,274.80 - Step 4: Simplify right side
147,713.20x = 26,839,398,752.88 - Step 5: Solve for x
x = 26,839,398,752.88/147,713.20 - Step 6: Final answer
x = 181,699.39
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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.