Finding the Fourth Proportional to 181,749.42, 251,024.13 and 121,214.88
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Solution
The fourth proportional to 181,749.42, 251,024.13 and 121,214.88 is: 167,416.54
Step by Step Solution
- Step 1: Write the proportion equation
181,749.42 : 251,024.13 = 121,214.88 : x - Step 2: Convert to fraction form
181,749.42/251,024.13 = 121,214.88/x - Step 3: Cross multiply
181,749.42x = 251,024.13 × 121,214.88 - Step 4: Simplify right side
181,749.42x = 30,427,859,795.05 - Step 5: Solve for x
x = 30,427,859,795.05/181,749.42 - Step 6: Final answer
x = 167,416.54
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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.