Finding the Fourth Proportional to 138,175.84, 207,241.80 and 49,412.80
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Solution
The fourth proportional to 138,175.84, 207,241.80 and 49,412.80 is: 74,111.35
Step by Step Solution
- Step 1: Write the proportion equation
138,175.84 : 207,241.80 = 49,412.80 : x - Step 2: Convert to fraction form
138,175.84/207,241.80 = 49,412.80/x - Step 3: Cross multiply
138,175.84x = 207,241.80 × 49,412.80 - Step 4: Simplify right side
138,175.84x = 10,240,397,615.04 - Step 5: Solve for x
x = 10,240,397,615.04/138,175.84 - Step 6: Final answer
x = 74,111.35
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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.