Finding the Fourth Proportional to 118,077.80, 177,116.70 and 106,413.80
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Solution
The fourth proportional to 118,077.80, 177,116.70 and 106,413.80 is: 159,620.70
Step by Step Solution
- Step 1: Write the proportion equation
118,077.80 : 177,116.70 = 106,413.80 : x - Step 2: Convert to fraction form
118,077.80/177,116.70 = 106,413.80/x - Step 3: Cross multiply
118,077.80x = 177,116.70 × 106,413.80 - Step 4: Simplify right side
118,077.80x = 18,847,661,090.46 - Step 5: Solve for x
x = 18,847,661,090.46/118,077.80 - Step 6: Final answer
x = 159,620.70
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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.