Finding the Fourth Proportional to 143,594.10, 198,166.42 and 79,935.96
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Solution
The fourth proportional to 143,594.10, 198,166.42 and 79,935.96 is: 110,315.28
Step by Step Solution
- Step 1: Write the proportion equation
143,594.10 : 198,166.42 = 79,935.96 : x - Step 2: Convert to fraction form
143,594.10/198,166.42 = 79,935.96/x - Step 3: Cross multiply
143,594.10x = 198,166.42 × 79,935.96 - Step 4: Simplify right side
143,594.10x = 15,840,623,022.46 - Step 5: Solve for x
x = 15,840,623,022.46/143,594.10 - Step 6: Final answer
x = 110,315.28
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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.