Finding the Fourth Proportional to 141,557.58, 195,346.38 and 81,163.80
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Solution
The fourth proportional to 141,557.58, 195,346.38 and 81,163.80 is: 112,004.28
Step by Step Solution
- Step 1: Write the proportion equation
141,557.58 : 195,346.38 = 81,163.80 : x - Step 2: Convert to fraction form
141,557.58/195,346.38 = 81,163.80/x - Step 3: Cross multiply
141,557.58x = 195,346.38 × 81,163.80 - Step 4: Simplify right side
141,557.58x = 15,855,054,517.04 - Step 5: Solve for x
x = 15,855,054,517.04/141,557.58 - Step 6: Final answer
x = 112,004.28
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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.