Finding the Fourth Proportional to 118,931.75, 164,125.82 and 68,630.75
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Solution
The fourth proportional to 118,931.75, 164,125.82 and 68,630.75 is: 94,710.44
Step by Step Solution
- Step 1: Write the proportion equation
118,931.75 : 164,125.82 = 68,630.75 : x - Step 2: Convert to fraction form
118,931.75/164,125.82 = 68,630.75/x - Step 3: Cross multiply
118,931.75x = 164,125.82 × 68,630.75 - Step 4: Simplify right side
118,931.75x = 11,264,078,120.97 - Step 5: Solve for x
x = 11,264,078,120.97/118,931.75 - Step 6: Final answer
x = 94,710.44
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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.