Finding the Fourth Proportional to 168,933.60, 253,413.36 and 75,448.80
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Solution
The fourth proportional to 168,933.60, 253,413.36 and 75,448.80 is: 113,178.99
Step by Step Solution
- Step 1: Write the proportion equation
168,933.60 : 253,413.36 = 75,448.80 : x - Step 2: Convert to fraction form
168,933.60/253,413.36 = 75,448.80/x - Step 3: Cross multiply
168,933.60x = 253,413.36 × 75,448.80 - Step 4: Simplify right side
168,933.60x = 19,119,733,915.97 - Step 5: Solve for x
x = 19,119,733,915.97/168,933.60 - Step 6: Final answer
x = 113,178.99
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1.5x scale
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.