Finding the Fourth Proportional to 139,292.08, 192,223.32 and 75,629.68
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Solution
The fourth proportional to 139,292.08, 192,223.32 and 75,629.68 is: 104,369.09
Step by Step Solution
- Step 1: Write the proportion equation
139,292.08 : 192,223.32 = 75,629.68 : x - Step 2: Convert to fraction form
139,292.08/192,223.32 = 75,629.68/x - Step 3: Cross multiply
139,292.08x = 192,223.32 × 75,629.68 - Step 4: Simplify right side
139,292.08x = 14,537,788,180.14 - Step 5: Solve for x
x = 14,537,788,180.14/139,292.08 - Step 6: Final answer
x = 104,369.09
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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.