Finding the Fourth Proportional to 117,115.99, 161,620.04 and 63,400.97
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Solution
The fourth proportional to 117,115.99, 161,620.04 and 63,400.97 is: 87,493.32
Step by Step Solution
- Step 1: Write the proportion equation
117,115.99 : 161,620.04 = 63,400.97 : x - Step 2: Convert to fraction form
117,115.99/161,620.04 = 63,400.97/x - Step 3: Cross multiply
117,115.99x = 161,620.04 × 63,400.97 - Step 4: Simplify right side
117,115.99x = 10,246,867,307.44 - Step 5: Solve for x
x = 10,246,867,307.44/117,115.99 - Step 6: Final answer
x = 87,493.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.