Finding the Fourth Proportional to 121,221.36, 181,325.63 and 85,195.29
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Solution
The fourth proportional to 121,221.36, 181,325.63 and 85,195.29 is: 127,437.03
Step by Step Solution
- Step 1: Write the proportion equation
121,221.36 : 181,325.63 = 85,195.29 : x - Step 2: Convert to fraction form
121,221.36/181,325.63 = 85,195.29/x - Step 3: Cross multiply
121,221.36x = 181,325.63 × 85,195.29 - Step 4: Simplify right side
121,221.36x = 15,448,089,206.31 - Step 5: Solve for x
x = 15,448,089,206.31/121,221.36 - Step 6: Final answer
x = 127,437.03
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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.