Finding the Fourth Proportional to 141,557.76, 195,338.88 and 81,127.68
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Solution
The fourth proportional to 141,557.76, 195,338.88 and 81,127.68 is: 111,949.99
Step by Step Solution
- Step 1: Write the proportion equation
141,557.76 : 195,338.88 = 81,127.68 : x - Step 2: Convert to fraction form
141,557.76/195,338.88 = 81,127.68/x - Step 3: Cross multiply
141,557.76x = 195,338.88 × 81,127.68 - Step 4: Simplify right side
141,557.76x = 15,847,390,148.20 - Step 5: Solve for x
x = 15,847,390,148.20/141,557.76 - Step 6: Final answer
x = 111,949.99
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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.