Finding the Fourth Proportional to 120,851.99, 181,282.53 and 45,958.17
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Solution
The fourth proportional to 120,851.99, 181,282.53 and 45,958.17 is: 68,938.99
Step by Step Solution
- Step 1: Write the proportion equation
120,851.99 : 181,282.53 = 45,958.17 : x - Step 2: Convert to fraction form
120,851.99/181,282.53 = 45,958.17/x - Step 3: Cross multiply
120,851.99x = 181,282.53 × 45,958.17 - Step 4: Simplify right side
120,851.99x = 8,331,413,331.77 - Step 5: Solve for x
x = 8,331,413,331.77/120,851.99 - Step 6: Final answer
x = 68,938.99
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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.