Finding the Fourth Proportional to 121,361.68, 181,989.06 and 65,184.94
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Solution
The fourth proportional to 121,361.68, 181,989.06 and 65,184.94 is: 97,748.70
Step by Step Solution
- Step 1: Write the proportion equation
121,361.68 : 181,989.06 = 65,184.94 : x - Step 2: Convert to fraction form
121,361.68/181,989.06 = 65,184.94/x - Step 3: Cross multiply
121,361.68x = 181,989.06 × 65,184.94 - Step 4: Simplify right side
121,361.68x = 11,862,945,956.76 - Step 5: Solve for x
x = 11,862,945,956.76/121,361.68 - Step 6: Final answer
x = 97,748.70
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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.