Finding the Fourth Proportional to 171,909.16, 257,876.16 and 71,968.84
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Solution
The fourth proportional to 171,909.16, 257,876.16 and 71,968.84 is: 107,958.46
Step by Step Solution
- Step 1: Write the proportion equation
171,909.16 : 257,876.16 = 71,968.84 : x - Step 2: Convert to fraction form
171,909.16/257,876.16 = 71,968.84/x - Step 3: Cross multiply
171,909.16x = 257,876.16 × 71,968.84 - Step 4: Simplify right side
171,909.16x = 18,559,048,098.85 - Step 5: Solve for x
x = 18,559,048,098.85/171,909.16 - Step 6: Final answer
x = 107,958.46
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1.5x scale
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.