Finding the Fourth Proportional to 145,860.75, 201,288.02 and 78,792.75
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Solution
The fourth proportional to 145,860.75, 201,288.02 and 78,792.75 is: 108,734.09
Step by Step Solution
- Step 1: Write the proportion equation
145,860.75 : 201,288.02 = 78,792.75 : x - Step 2: Convert to fraction form
145,860.75/201,288.02 = 78,792.75/x - Step 3: Cross multiply
145,860.75x = 201,288.02 × 78,792.75 - Step 4: Simplify right side
145,860.75x = 15,860,036,243.89 - Step 5: Solve for x
x = 15,860,036,243.89/145,860.75 - Step 6: Final answer
x = 108,734.09
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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.