Finding the Fourth Proportional to 144,412.12, 199,289.19 and 80,765.02
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Solution
The fourth proportional to 144,412.12, 199,289.19 and 80,765.02 is: 111,455.99
Step by Step Solution
- Step 1: Write the proportion equation
144,412.12 : 199,289.19 = 80,765.02 : x - Step 2: Convert to fraction form
144,412.12/199,289.19 = 80,765.02/x - Step 3: Cross multiply
144,412.12x = 199,289.19 × 80,765.02 - Step 4: Simplify right side
144,412.12x = 16,095,595,416.13 - Step 5: Solve for x
x = 16,095,595,416.13/144,412.12 - Step 6: Final answer
x = 111,455.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.