Finding the Fourth Proportional to 139,198.77, 208,780.97 and 59,268.87
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Solution
The fourth proportional to 139,198.77, 208,780.97 and 59,268.87 is: 88,895.99
Step by Step Solution
- Step 1: Write the proportion equation
139,198.77 : 208,780.97 = 59,268.87 : x - Step 2: Convert to fraction form
139,198.77/208,780.97 = 59,268.87/x - Step 3: Cross multiply
139,198.77x = 208,780.97 × 59,268.87 - Step 4: Simplify right side
139,198.77x = 12,374,211,873.06 - Step 5: Solve for x
x = 12,374,211,873.06/139,198.77 - Step 6: Final answer
x = 88,895.99
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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.