Finding the Fourth Proportional to 197,122.68, 295,699.82 and 78,729.03
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Solution
The fourth proportional to 197,122.68, 295,699.82 and 78,729.03 is: 118,099.85
Step by Step Solution
- Step 1: Write the proportion equation
197,122.68 : 295,699.82 = 78,729.03 : x - Step 2: Convert to fraction form
197,122.68/295,699.82 = 78,729.03/x - Step 3: Cross multiply
197,122.68x = 295,699.82 × 78,729.03 - Step 4: Simplify right side
197,122.68x = 23,280,159,606.13 - Step 5: Solve for x
x = 23,280,159,606.13/197,122.68 - Step 6: Final answer
x = 118,099.85
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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.