Finding the Fourth Proportional to 144,412.20, 199,273.50 and 79,871.18
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Solution
The fourth proportional to 144,412.20, 199,273.50 and 79,871.18 is: 110,213.75
Step by Step Solution
- Step 1: Write the proportion equation
144,412.20 : 199,273.50 = 79,871.18 : x - Step 2: Convert to fraction form
144,412.20/199,273.50 = 79,871.18/x - Step 3: Cross multiply
144,412.20x = 199,273.50 × 79,871.18 - Step 4: Simplify right side
144,412.20x = 15,916,209,587.73 - Step 5: Solve for x
x = 15,916,209,587.73/144,412.20 - Step 6: Final answer
x = 110,213.75
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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.