Finding the Fourth Proportional to 120,845.80, 181,268.70 and 37,739.80
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Solution
The fourth proportional to 120,845.80, 181,268.70 and 37,739.80 is: 56,609.70
Step by Step Solution
- Step 1: Write the proportion equation
120,845.80 : 181,268.70 = 37,739.80 : x - Step 2: Convert to fraction form
120,845.80/181,268.70 = 37,739.80/x - Step 3: Cross multiply
120,845.80x = 181,268.70 × 37,739.80 - Step 4: Simplify right side
120,845.80x = 6,841,044,484.26 - Step 5: Solve for x
x = 6,841,044,484.26/120,845.80 - Step 6: Final answer
x = 56,609.70
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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.