Finding the Fourth Proportional to 115,668.54, 173,384.64 and 65,642.99
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Solution
The fourth proportional to 115,668.54, 173,384.64 and 65,642.99 is: 98,397.41
Step by Step Solution
- Step 1: Write the proportion equation
115,668.54 : 173,384.64 = 65,642.99 : x - Step 2: Convert to fraction form
115,668.54/173,384.64 = 65,642.99/x - Step 3: Cross multiply
115,668.54x = 173,384.64 × 65,642.99 - Step 4: Simplify right side
115,668.54x = 11,381,485,322.75 - Step 5: Solve for x
x = 11,381,485,322.75/115,668.54 - Step 6: Final answer
x = 98,397.41
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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.