Finding the Fourth Proportional to 138,476.93, 207,750.42 and 38,637.08
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Solution
The fourth proportional to 138,476.93, 207,750.42 and 38,637.08 is: 57,965.39
Step by Step Solution
- Step 1: Write the proportion equation
138,476.93 : 207,750.42 = 38,637.08 : x - Step 2: Convert to fraction form
138,476.93/207,750.42 = 38,637.08/x - Step 3: Cross multiply
138,476.93x = 207,750.42 × 38,637.08 - Step 4: Simplify right side
138,476.93x = 8,026,868,558.82 - Step 5: Solve for x
x = 8,026,868,558.82/138,476.93 - Step 6: Final answer
x = 57,965.39
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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.