Finding the Fourth Proportional to 102,767.20, 141,648.96 and 68,763.44
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Solution
The fourth proportional to 102,767.20, 141,648.96 and 68,763.44 is: 94,779.95
Step by Step Solution
- Step 1: Write the proportion equation
102,767.20 : 141,648.96 = 68,763.44 : x - Step 2: Convert to fraction form
102,767.20/141,648.96 = 68,763.44/x - Step 3: Cross multiply
102,767.20x = 141,648.96 × 68,763.44 - Step 4: Simplify right side
102,767.20x = 9,740,269,762.02 - Step 5: Solve for x
x = 9,740,269,762.02/102,767.20 - Step 6: Final answer
x = 94,779.95
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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.