Finding the Fourth Proportional to 118,961.13, 164,180.94 and 68,660.13
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Solution
The fourth proportional to 118,961.13, 164,180.94 and 68,660.13 is: 94,759.39
Step by Step Solution
- Step 1: Write the proportion equation
118,961.13 : 164,180.94 = 68,660.13 : x - Step 2: Convert to fraction form
118,961.13/164,180.94 = 68,660.13/x - Step 3: Cross multiply
118,961.13x = 164,180.94 × 68,660.13 - Step 4: Simplify right side
118,961.13x = 11,272,684,683.92 - Step 5: Solve for x
x = 11,272,684,683.92/118,961.13 - Step 6: Final answer
x = 94,759.39
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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.