Finding the Fourth Proportional to 137,579.68, 189,857.00 and 77,149.00
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Solution
The fourth proportional to 137,579.68, 189,857.00 and 77,149.00 is: 106,463.95
Step by Step Solution
- Step 1: Write the proportion equation
137,579.68 : 189,857.00 = 77,149.00 : x - Step 2: Convert to fraction form
137,579.68/189,857.00 = 77,149.00/x - Step 3: Cross multiply
137,579.68x = 189,857.00 × 77,149.00 - Step 4: Simplify right side
137,579.68x = 14,647,276,357.97 - Step 5: Solve for x
x = 14,647,276,357.97/137,579.68 - Step 6: Final answer
x = 106,463.95
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.