Finding the Fourth Proportional to 171,532.99, 257,195.30 and 76,745.53
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Solution
The fourth proportional to 171,532.99, 257,195.30 and 76,745.53 is: 115,071.67
Step by Step Solution
- Step 1: Write the proportion equation
171,532.99 : 257,195.30 = 76,745.53 : x - Step 2: Convert to fraction form
171,532.99/257,195.30 = 76,745.53/x - Step 3: Cross multiply
171,532.99x = 257,195.30 × 76,745.53 - Step 4: Simplify right side
171,532.99x = 19,738,588,534.75 - Step 5: Solve for x
x = 19,738,588,534.75/171,532.99 - Step 6: Final answer
x = 115,071.67
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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.