Finding the Fourth Proportional to 118,367.64, 177,485.94 and 39,438.84
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Solution
The fourth proportional to 118,367.64, 177,485.94 and 39,438.84 is: 59,136.43
Step by Step Solution
- Step 1: Write the proportion equation
118,367.64 : 177,485.94 = 39,438.84 : x - Step 2: Convert to fraction form
118,367.64/177,485.94 = 39,438.84/x - Step 3: Cross multiply
118,367.64x = 177,485.94 × 39,438.84 - Step 4: Simplify right side
118,367.64x = 6,999,839,589.91 - Step 5: Solve for x
x = 6,999,839,589.91/118,367.64 - Step 6: Final answer
x = 59,136.43
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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.