Finding the Fourth Proportional to 120,866.95, 181,238.14 and 54,249.99
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Solution
The fourth proportional to 120,866.95, 181,238.14 and 54,249.99 is: 81,347.03
Step by Step Solution
- Step 1: Write the proportion equation
120,866.95 : 181,238.14 = 54,249.99 : x - Step 2: Convert to fraction form
120,866.95/181,238.14 = 54,249.99/x - Step 3: Cross multiply
120,866.95x = 181,238.14 × 54,249.99 - Step 4: Simplify right side
120,866.95x = 9,832,166,919.15 - Step 5: Solve for x
x = 9,832,166,919.15/120,866.95 - Step 6: Final answer
x = 81,347.03
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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.