Finding the Fourth Proportional to 143,019.93, 197,371.99 and 79,363.65
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Solution
The fourth proportional to 143,019.93, 197,371.99 and 79,363.65 is: 109,524.33
Step by Step Solution
- Step 1: Write the proportion equation
143,019.93 : 197,371.99 = 79,363.65 : x - Step 2: Convert to fraction form
143,019.93/197,371.99 = 79,363.65/x - Step 3: Cross multiply
143,019.93x = 197,371.99 × 79,363.65 - Step 4: Simplify right side
143,019.93x = 15,664,161,534.16 - Step 5: Solve for x
x = 15,664,161,534.16/143,019.93 - Step 6: Final answer
x = 109,524.33
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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.