Finding the Fourth Proportional to 138,626.93, 207,953.49 and 38,787.14
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Solution
The fourth proportional to 138,626.93, 207,953.49 and 38,787.14 is: 58,184.37
Step by Step Solution
- Step 1: Write the proportion equation
138,626.93 : 207,953.49 = 38,787.14 : x - Step 2: Convert to fraction form
138,626.93/207,953.49 = 38,787.14/x - Step 3: Cross multiply
138,626.93x = 207,953.49 × 38,787.14 - Step 4: Simplify right side
138,626.93x = 8,065,921,130.12 - Step 5: Solve for x
x = 8,065,921,130.12/138,626.93 - Step 6: Final answer
x = 58,184.37
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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.