Finding the Fourth Proportional to 121,580.80, 181,933.80 and 82,214.80
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Solution
The fourth proportional to 121,580.80, 181,933.80 and 82,214.80 is: 123,026.42
Step by Step Solution
- Step 1: Write the proportion equation
121,580.80 : 181,933.80 = 82,214.80 : x - Step 2: Convert to fraction form
121,580.80/181,933.80 = 82,214.80/x - Step 3: Cross multiply
121,580.80x = 181,933.80 × 82,214.80 - Step 4: Simplify right side
121,580.80x = 14,957,650,980.24 - Step 5: Solve for x
x = 14,957,650,980.24/121,580.80 - Step 6: Final answer
x = 123,026.42
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1.5x scale
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.