Finding the Fourth Proportional to 117,402.13, 175,853.74 and 79,474.54
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Solution
The fourth proportional to 117,402.13, 175,853.74 and 79,474.54 is: 119,042.94
Step by Step Solution
- Step 1: Write the proportion equation
117,402.13 : 175,853.74 = 79,474.54 : x - Step 2: Convert to fraction form
117,402.13/175,853.74 = 79,474.54/x - Step 3: Cross multiply
117,402.13x = 175,853.74 × 79,474.54 - Step 4: Simplify right side
117,402.13x = 13,975,895,093.78 - Step 5: Solve for x
x = 13,975,895,093.78/117,402.13 - Step 6: Final answer
x = 119,042.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.