Finding the Fourth Proportional to 141,415.12, 195,148.75 and 80,166.99
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Solution
The fourth proportional to 141,415.12, 195,148.75 and 80,166.99 is: 110,628.11
Step by Step Solution
- Step 1: Write the proportion equation
141,415.12 : 195,148.75 = 80,166.99 : x - Step 2: Convert to fraction form
141,415.12/195,148.75 = 80,166.99/x - Step 3: Cross multiply
141,415.12x = 195,148.75 × 80,166.99 - Step 4: Simplify right side
141,415.12x = 15,644,487,889.76 - Step 5: Solve for x
x = 15,644,487,889.76/141,415.12 - Step 6: Final answer
x = 110,628.11
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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.