Finding the Fourth Proportional to 144,483.21, 199,386.81 and 80,820.99
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Solution
The fourth proportional to 144,483.21, 199,386.81 and 80,820.99 is: 111,532.96
Step by Step Solution
- Step 1: Write the proportion equation
144,483.21 : 199,386.81 = 80,820.99 : x - Step 2: Convert to fraction form
144,483.21/199,386.81 = 80,820.99/x - Step 3: Cross multiply
144,483.21x = 199,386.81 × 80,820.99 - Step 4: Simplify right side
144,483.21x = 16,114,639,377.14 - Step 5: Solve for x
x = 16,114,639,377.14/144,483.21 - Step 6: Final answer
x = 111,532.96
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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.