Finding the Fourth Proportional to 143,387.73, 197,873.87 and 79,724.97
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Solution
The fourth proportional to 143,387.73, 197,873.87 and 79,724.97 is: 110,019.79
Step by Step Solution
- Step 1: Write the proportion equation
143,387.73 : 197,873.87 = 79,724.97 : x - Step 2: Convert to fraction form
143,387.73/197,873.87 = 79,724.97/x - Step 3: Cross multiply
143,387.73x = 197,873.87 × 79,724.97 - Step 4: Simplify right side
143,387.73x = 15,775,487,803.22 - Step 5: Solve for x
x = 15,775,487,803.22/143,387.73 - Step 6: Final answer
x = 110,019.79
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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.