Finding the Fourth Proportional to 138,127.93, 207,193.43 and 38,288.99
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Solution
The fourth proportional to 138,127.93, 207,193.43 and 38,288.99 is: 57,433.90
Step by Step Solution
- Step 1: Write the proportion equation
138,127.93 : 207,193.43 = 38,288.99 : x - Step 2: Convert to fraction form
138,127.93/207,193.43 = 38,288.99/x - Step 3: Cross multiply
138,127.93x = 207,193.43 × 38,288.99 - Step 4: Simplify right side
138,127.93x = 7,933,225,941.92 - Step 5: Solve for x
x = 7,933,225,941.92/138,127.93 - Step 6: Final answer
x = 57,433.90
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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.