Finding the Fourth Proportional to 103,632.06, 155,450.72 and 77,502.68
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Solution
The fourth proportional to 103,632.06, 155,450.72 and 77,502.68 is: 116,255.99
Step by Step Solution
- Step 1: Write the proportion equation
103,632.06 : 155,450.72 = 77,502.68 : x - Step 2: Convert to fraction form
103,632.06/155,450.72 = 77,502.68/x - Step 3: Cross multiply
103,632.06x = 155,450.72 × 77,502.68 - Step 4: Simplify right side
103,632.06x = 12,047,847,407.93 - Step 5: Solve for x
x = 12,047,847,407.93/103,632.06 - Step 6: Final answer
x = 116,255.99
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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.