Finding the Fourth Proportional to 120,242.14, 165,939.05 and 66,526.29
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Solution
The fourth proportional to 120,242.14, 165,939.05 and 66,526.29 is: 91,808.99
Step by Step Solution
- Step 1: Write the proportion equation
120,242.14 : 165,939.05 = 66,526.29 : x - Step 2: Convert to fraction form
120,242.14/165,939.05 = 66,526.29/x - Step 3: Cross multiply
120,242.14x = 165,939.05 × 66,526.29 - Step 4: Simplify right side
120,242.14x = 11,039,309,362.62 - Step 5: Solve for x
x = 11,039,309,362.62/120,242.14 - Step 6: Final answer
x = 91,808.99
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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.