Finding the Fourth Proportional to 161,729.93, 242,225.84 and 142,809.68
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Solution
The fourth proportional to 161,729.93, 242,225.84 and 142,809.68 is: 213,888.64
Step by Step Solution
- Step 1: Write the proportion equation
161,729.93 : 242,225.84 = 142,809.68 : x - Step 2: Convert to fraction form
161,729.93/242,225.84 = 142,809.68/x - Step 3: Cross multiply
161,729.93x = 242,225.84 × 142,809.68 - Step 4: Simplify right side
161,729.93x = 34,592,195,660.72 - Step 5: Solve for x
x = 34,592,195,660.72/161,729.93 - Step 6: Final answer
x = 213,888.64
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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.