Finding the Fourth Proportional to 147,754.20, 221,372.10 and 121,315.80
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Solution
The fourth proportional to 147,754.20, 221,372.10 and 121,315.80 is: 181,760.88
Step by Step Solution
- Step 1: Write the proportion equation
147,754.20 : 221,372.10 = 121,315.80 : x - Step 2: Convert to fraction form
147,754.20/221,372.10 = 121,315.80/x - Step 3: Cross multiply
147,754.20x = 221,372.10 × 121,315.80 - Step 4: Simplify right side
147,754.20x = 26,855,933,409.18 - Step 5: Solve for x
x = 26,855,933,409.18/147,754.20 - Step 6: Final answer
x = 181,760.88
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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.