Finding the Fourth Proportional to 144,318.13, 199,214.51 and 129,184.09
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Solution
The fourth proportional to 144,318.13, 199,214.51 and 129,184.09 is: 178,323.71
Step by Step Solution
- Step 1: Write the proportion equation
144,318.13 : 199,214.51 = 129,184.09 : x - Step 2: Convert to fraction form
144,318.13/199,214.51 = 129,184.09/x - Step 3: Cross multiply
144,318.13x = 199,214.51 × 129,184.09 - Step 4: Simplify right side
144,318.13x = 25,735,344,045.19 - Step 5: Solve for x
x = 25,735,344,045.19/144,318.13 - Step 6: Final answer
x = 178,323.71
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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.