Finding the Fourth Proportional to 143,809.08, 198,457.53 and 80,150.99
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Solution
The fourth proportional to 143,809.08, 198,457.53 and 80,150.99 is: 110,608.92
Step by Step Solution
- Step 1: Write the proportion equation
143,809.08 : 198,457.53 = 80,150.99 : x - Step 2: Convert to fraction form
143,809.08/198,457.53 = 80,150.99/x - Step 3: Cross multiply
143,809.08x = 198,457.53 × 80,150.99 - Step 4: Simplify right side
143,809.08x = 15,906,566,510.17 - Step 5: Solve for x
x = 15,906,566,510.17/143,809.08 - Step 6: Final answer
x = 110,608.92
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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.