Finding the Fourth Proportional to 171,557.55, 257,353.43 and 71,748.99
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Solution
The fourth proportional to 171,557.55, 257,353.43 and 71,748.99 is: 107,630.64
Step by Step Solution
- Step 1: Write the proportion equation
171,557.55 : 257,353.43 = 71,748.99 : x - Step 2: Convert to fraction form
171,557.55/257,353.43 = 71,748.99/x - Step 3: Cross multiply
171,557.55x = 257,353.43 × 71,748.99 - Step 4: Simplify right side
171,557.55x = 18,464,848,316.79 - Step 5: Solve for x
x = 18,464,848,316.79/171,557.55 - Step 6: Final answer
x = 107,630.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.