Finding the Fourth Proportional to 138,932.74, 208,408.29 and 54,686.26
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Solution
The fourth proportional to 138,932.74, 208,408.29 and 54,686.26 is: 82,033.00
Step by Step Solution
- Step 1: Write the proportion equation
138,932.74 : 208,408.29 = 54,686.26 : x - Step 2: Convert to fraction form
138,932.74/208,408.29 = 54,686.26/x - Step 3: Cross multiply
138,932.74x = 208,408.29 × 54,686.26 - Step 4: Simplify right side
138,932.74x = 11,397,069,933.10 - Step 5: Solve for x
x = 11,397,069,933.10/138,932.74 - Step 6: Final answer
x = 82,033.00
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.