Finding the Fourth Proportional to 178,427.16, 246,211.74 and 102,999.96
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Solution
The fourth proportional to 178,427.16, 246,211.74 and 102,999.96 is: 142,129.70
Step by Step Solution
- Step 1: Write the proportion equation
178,427.16 : 246,211.74 = 102,999.96 : x - Step 2: Convert to fraction form
178,427.16/246,211.74 = 102,999.96/x - Step 3: Cross multiply
178,427.16x = 246,211.74 × 102,999.96 - Step 4: Simplify right side
178,427.16x = 25,359,799,371.53 - Step 5: Solve for x
x = 25,359,799,371.53/178,427.16 - Step 6: Final answer
x = 142,129.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.