Finding the Fourth Proportional to 121,236.24, 181,829.53 and 76,236.96
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Solution
The fourth proportional to 121,236.24, 181,829.53 and 76,236.96 is: 114,339.83
Step by Step Solution
- Step 1: Write the proportion equation
121,236.24 : 181,829.53 = 76,236.96 : x - Step 2: Convert to fraction form
121,236.24/181,829.53 = 76,236.96/x - Step 3: Cross multiply
121,236.24x = 181,829.53 × 76,236.96 - Step 4: Simplify right side
121,236.24x = 13,862,130,953.75 - Step 5: Solve for x
x = 13,862,130,953.75/121,236.24 - Step 6: Final answer
x = 114,339.83
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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.