Finding the Fourth Proportional to 102,675.75, 141,695.58 and 57,355.65
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Solution
The fourth proportional to 102,675.75, 141,695.58 and 57,355.65 is: 79,152.50
Step by Step Solution
- Step 1: Write the proportion equation
102,675.75 : 141,695.58 = 57,355.65 : x - Step 2: Convert to fraction form
102,675.75/141,695.58 = 57,355.65/x - Step 3: Cross multiply
102,675.75x = 141,695.58 × 57,355.65 - Step 4: Simplify right side
102,675.75x = 8,127,042,093.03 - Step 5: Solve for x
x = 8,127,042,093.03/102,675.75 - Step 6: Final answer
x = 79,152.50
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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.