Finding the Fourth Proportional to 115,333.01, 159,163.48 and 66,931.19
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Solution
The fourth proportional to 115,333.01, 159,163.48 and 66,931.19 is: 92,367.32
Step by Step Solution
- Step 1: Write the proportion equation
115,333.01 : 159,163.48 = 66,931.19 : x - Step 2: Convert to fraction form
115,333.01/159,163.48 = 66,931.19/x - Step 3: Cross multiply
115,333.01x = 159,163.48 × 66,931.19 - Step 4: Simplify right side
115,333.01x = 10,653,001,120.94 - Step 5: Solve for x
x = 10,653,001,120.94/115,333.01 - Step 6: Final answer
x = 92,367.32
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1.5x scale
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.