Finding the Fourth Proportional to 113,873.22, 157,133.07 and 66,117.24
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Solution
The fourth proportional to 113,873.22, 157,133.07 and 66,117.24 is: 91,234.84
Step by Step Solution
- Step 1: Write the proportion equation
113,873.22 : 157,133.07 = 66,117.24 : x - Step 2: Convert to fraction form
113,873.22/157,133.07 = 66,117.24/x - Step 3: Cross multiply
113,873.22x = 157,133.07 × 66,117.24 - Step 4: Simplify right side
113,873.22x = 10,389,204,901.13 - Step 5: Solve for x
x = 10,389,204,901.13/113,873.22 - Step 6: Final answer
x = 91,234.84
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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.