Finding the Fourth Proportional to 144,055.68, 198,791.63 and 79,523.53
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Solution
The fourth proportional to 144,055.68, 198,791.63 and 79,523.53 is: 109,739.60
Step by Step Solution
- Step 1: Write the proportion equation
144,055.68 : 198,791.63 = 79,523.53 : x - Step 2: Convert to fraction form
144,055.68/198,791.63 = 79,523.53/x - Step 3: Cross multiply
144,055.68x = 198,791.63 × 79,523.53 - Step 4: Simplify right side
144,055.68x = 15,808,612,152.05 - Step 5: Solve for x
x = 15,808,612,152.05/144,055.68 - Step 6: Final answer
x = 109,739.60
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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.