Finding the Fourth Proportional to 171,902.16, 257,865.66 and 71,961.84
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Solution
The fourth proportional to 171,902.16, 257,865.66 and 71,961.84 is: 107,947.96
Step by Step Solution
- Step 1: Write the proportion equation
171,902.16 : 257,865.66 = 71,961.84 : x - Step 2: Convert to fraction form
171,902.16/257,865.66 = 71,961.84/x - Step 3: Cross multiply
171,902.16x = 257,865.66 × 71,961.84 - Step 4: Simplify right side
171,902.16x = 18,556,487,366.41 - Step 5: Solve for x
x = 18,556,487,366.41/171,902.16 - Step 6: Final answer
x = 107,947.96
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.