Finding the Fourth Proportional to 113,882.99, 170,825.09 and 74,688.30
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Solution
The fourth proportional to 113,882.99, 170,825.09 and 74,688.30 is: 112,032.85
Step by Step Solution
- Step 1: Write the proportion equation
113,882.99 : 170,825.09 = 74,688.30 : x - Step 2: Convert to fraction form
113,882.99/170,825.09 = 74,688.30/x - Step 3: Cross multiply
113,882.99x = 170,825.09 × 74,688.30 - Step 4: Simplify right side
113,882.99x = 12,758,635,196.01 - Step 5: Solve for x
x = 12,758,635,196.01/113,882.99 - Step 6: Final answer
x = 112,032.85
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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.