Finding the Fourth Proportional to 137,245.96, 189,356.24 and 76,807.00
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Solution
The fourth proportional to 137,245.96, 189,356.24 and 76,807.00 is: 105,969.49
Step by Step Solution
- Step 1: Write the proportion equation
137,245.96 : 189,356.24 = 76,807.00 : x - Step 2: Convert to fraction form
137,245.96/189,356.24 = 76,807.00/x - Step 3: Cross multiply
137,245.96x = 189,356.24 × 76,807.00 - Step 4: Simplify right side
137,245.96x = 14,543,884,444.31 - Step 5: Solve for x
x = 14,543,884,444.31/137,245.96 - Step 6: Final answer
x = 105,969.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.