Finding the Fourth Proportional to 109,458.99, 164,217.74 and 39,338.91
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Solution
The fourth proportional to 109,458.99, 164,217.74 and 39,338.91 is: 59,018.88
Step by Step Solution
- Step 1: Write the proportion equation
109,458.99 : 164,217.74 = 39,338.91 : x - Step 2: Convert to fraction form
109,458.99/164,217.74 = 39,338.91/x - Step 3: Cross multiply
109,458.99x = 164,217.74 × 39,338.91 - Step 4: Simplify right side
109,458.99x = 6,460,146,697.57 - Step 5: Solve for x
x = 6,460,146,697.57/109,458.99 - Step 6: Final answer
x = 59,018.88
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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.