Finding the Fourth Proportional to 102,763.08, 141,814.80 and 57,441.96
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Solution
The fourth proportional to 102,763.08, 141,814.80 and 57,441.96 is: 79,270.88
Step by Step Solution
- Step 1: Write the proportion equation
102,763.08 : 141,814.80 = 57,441.96 : x - Step 2: Convert to fraction form
102,763.08/141,814.80 = 57,441.96/x - Step 3: Cross multiply
102,763.08x = 141,814.80 × 57,441.96 - Step 4: Simplify right side
102,763.08x = 8,146,120,069.01 - Step 5: Solve for x
x = 8,146,120,069.01/102,763.08 - Step 6: Final answer
x = 79,270.88
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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.