Finding the Fourth Proportional to 119,989.26, 179,923.40 and 39,998.84
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Solution
The fourth proportional to 119,989.26, 179,923.40 and 39,998.84 is: 59,978.09
Step by Step Solution
- Step 1: Write the proportion equation
119,989.26 : 179,923.40 = 39,998.84 : x - Step 2: Convert to fraction form
119,989.26/179,923.40 = 39,998.84/x - Step 3: Cross multiply
119,989.26x = 179,923.40 × 39,998.84 - Step 4: Simplify right side
119,989.26x = 7,196,726,189.24 - Step 5: Solve for x
x = 7,196,726,189.24/119,989.26 - Step 6: Final answer
x = 59,978.09
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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.