Finding the Fourth Proportional to 144,476.13, 199,395.95 and 80,827.05
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Solution
The fourth proportional to 144,476.13, 199,395.95 and 80,827.05 is: 111,551.89
Step by Step Solution
- Step 1: Write the proportion equation
144,476.13 : 199,395.95 = 80,827.05 : x - Step 2: Convert to fraction form
144,476.13/199,395.95 = 80,827.05/x - Step 3: Cross multiply
144,476.13x = 199,395.95 × 80,827.05 - Step 4: Simplify right side
144,476.13x = 16,116,586,016.31 - Step 5: Solve for x
x = 16,116,586,016.31/144,476.13 - Step 6: Final answer
x = 111,551.89
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1.5x scale
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.