Finding the Fourth Proportional to 166,439.13, 229,685.99 and 90,987.63
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Solution
The fourth proportional to 166,439.13, 229,685.99 and 90,987.63 is: 125,562.92
Step by Step Solution
- Step 1: Write the proportion equation
166,439.13 : 229,685.99 = 90,987.63 : x - Step 2: Convert to fraction form
166,439.13/229,685.99 = 90,987.63/x - Step 3: Cross multiply
166,439.13x = 229,685.99 × 90,987.63 - Step 4: Simplify right side
166,439.13x = 20,898,583,874.30 - Step 5: Solve for x
x = 20,898,583,874.30/166,439.13 - Step 6: Final answer
x = 125,562.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.