Finding the Fourth Proportional to 144,742.74, 199,759.71 and 83,491.26
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Solution
The fourth proportional to 144,742.74, 199,759.71 and 83,491.26 is: 115,226.43
Step by Step Solution
- Step 1: Write the proportion equation
144,742.74 : 199,759.71 = 83,491.26 : x - Step 2: Convert to fraction form
144,742.74/199,759.71 = 83,491.26/x - Step 3: Cross multiply
144,742.74x = 199,759.71 × 83,491.26 - Step 4: Simplify right side
144,742.74x = 16,678,189,885.13 - Step 5: Solve for x
x = 16,678,189,885.13/144,742.74 - Step 6: Final answer
x = 115,226.43
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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.