Finding the Fourth Proportional to 161,806.18, 242,518.68 and 72,955.66
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Solution
The fourth proportional to 161,806.18, 242,518.68 and 72,955.66 is: 109,347.56
Step by Step Solution
- Step 1: Write the proportion equation
161,806.18 : 242,518.68 = 72,955.66 : x - Step 2: Convert to fraction form
161,806.18/242,518.68 = 72,955.66/x - Step 3: Cross multiply
161,806.18x = 242,518.68 × 72,955.66 - Step 4: Simplify right side
161,806.18x = 17,693,110,361.73 - Step 5: Solve for x
x = 17,693,110,361.73/161,806.18 - Step 6: Final answer
x = 109,347.56
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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.