Finding the Fourth Proportional to 138,637.44, 191,338.56 and 84,925.44
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Solution
The fourth proportional to 138,637.44, 191,338.56 and 84,925.44 is: 117,208.68
Step by Step Solution
- Step 1: Write the proportion equation
138,637.44 : 191,338.56 = 84,925.44 : x - Step 2: Convert to fraction form
138,637.44/191,338.56 = 84,925.44/x - Step 3: Cross multiply
138,637.44x = 191,338.56 × 84,925.44 - Step 4: Simplify right side
138,637.44x = 16,249,511,396.97 - Step 5: Solve for x
x = 16,249,511,396.97/138,637.44 - Step 6: Final answer
x = 117,208.68
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1.5x scale
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.