Finding the Fourth Proportional to 141,375.20, 195,109.63 and 77,724.99
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Solution
The fourth proportional to 141,375.20, 195,109.63 and 77,724.99 is: 107,267.01
Step by Step Solution
- Step 1: Write the proportion equation
141,375.20 : 195,109.63 = 77,724.99 : x - Step 2: Convert to fraction form
141,375.20/195,109.63 = 77,724.99/x - Step 3: Cross multiply
141,375.20x = 195,109.63 × 77,724.99 - Step 4: Simplify right side
141,375.20x = 15,164,893,846.34 - Step 5: Solve for x
x = 15,164,893,846.34/141,375.20 - Step 6: Final answer
x = 107,267.01
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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.