Finding the Fourth Proportional to 144,543.05, 199,455.37 and 84,121.71
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Solution
The fourth proportional to 144,543.05, 199,455.37 and 84,121.71 is: 116,079.79
Step by Step Solution
- Step 1: Write the proportion equation
144,543.05 : 199,455.37 = 84,121.71 : x - Step 2: Convert to fraction form
144,543.05/199,455.37 = 84,121.71/x - Step 3: Cross multiply
144,543.05x = 199,455.37 × 84,121.71 - Step 4: Simplify right side
144,543.05x = 16,778,526,793.08 - Step 5: Solve for x
x = 16,778,526,793.08/144,543.05 - Step 6: Final answer
x = 116,079.79
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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.