Finding the Fourth Proportional to 115,998.24, 160,067.80 and 64,316.72
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Solution
The fourth proportional to 115,998.24, 160,067.80 and 64,316.72 is: 88,751.66
Step by Step Solution
- Step 1: Write the proportion equation
115,998.24 : 160,067.80 = 64,316.72 : x - Step 2: Convert to fraction form
115,998.24/160,067.80 = 64,316.72/x - Step 3: Cross multiply
115,998.24x = 160,067.80 × 64,316.72 - Step 4: Simplify right side
115,998.24x = 10,295,035,873.62 - Step 5: Solve for x
x = 10,295,035,873.62/115,998.24 - Step 6: Final answer
x = 88,751.66
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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.