Finding the Fourth Proportional to 157,981.67, 236,762.92 and 69,138.44
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Solution
The fourth proportional to 157,981.67, 236,762.92 and 69,138.44 is: 103,615.94
Step by Step Solution
- Step 1: Write the proportion equation
157,981.67 : 236,762.92 = 69,138.44 : x - Step 2: Convert to fraction form
157,981.67/236,762.92 = 69,138.44/x - Step 3: Cross multiply
157,981.67x = 236,762.92 × 69,138.44 - Step 4: Simplify right side
157,981.67x = 16,369,419,357.71 - Step 5: Solve for x
x = 16,369,419,357.71/157,981.67 - Step 6: Final answer
x = 103,615.94
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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.