Finding the Fourth Proportional to 141,715.19, 195,566.96 and 78,052.98
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Solution
The fourth proportional to 141,715.19, 195,566.96 and 78,052.98 is: 107,713.11
Step by Step Solution
- Step 1: Write the proportion equation
141,715.19 : 195,566.96 = 78,052.98 : x - Step 2: Convert to fraction form
141,715.19/195,566.96 = 78,052.98/x - Step 3: Cross multiply
141,715.19x = 195,566.96 × 78,052.98 - Step 4: Simplify right side
141,715.19x = 15,264,584,017.54 - Step 5: Solve for x
x = 15,264,584,017.54/141,715.19 - Step 6: Final answer
x = 107,713.11
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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.