Finding the Fourth Proportional to 137,304.22, 189,469.60 and 79,943.99
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Solution
The fourth proportional to 137,304.22, 189,469.60 and 79,943.99 is: 110,316.75
Step by Step Solution
- Step 1: Write the proportion equation
137,304.22 : 189,469.60 = 79,943.99 : x - Step 2: Convert to fraction form
137,304.22/189,469.60 = 79,943.99/x - Step 3: Cross multiply
137,304.22x = 189,469.60 × 79,943.99 - Step 4: Simplify right side
137,304.22x = 15,146,955,807.70 - Step 5: Solve for x
x = 15,146,955,807.70/137,304.22 - Step 6: Final answer
x = 110,316.75
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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.