Finding the Fourth Proportional to 118,763.68, 178,164.88 and 56,413.12
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Solution
The fourth proportional to 118,763.68, 178,164.88 and 56,413.12 is: 84,628.88
Step by Step Solution
- Step 1: Write the proportion equation
118,763.68 : 178,164.88 = 56,413.12 : x - Step 2: Convert to fraction form
118,763.68/178,164.88 = 56,413.12/x - Step 3: Cross multiply
118,763.68x = 178,164.88 × 56,413.12 - Step 4: Simplify right side
118,763.68x = 10,050,836,755.23 - Step 5: Solve for x
x = 10,050,836,755.23/118,763.68 - Step 6: Final answer
x = 84,628.88
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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.