Finding the Fourth Proportional to 135,406.96, 186,882.69 and 77,263.81
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Solution
The fourth proportional to 135,406.96, 186,882.69 and 77,263.81 is: 106,636.09
Step by Step Solution
- Step 1: Write the proportion equation
135,406.96 : 186,882.69 = 77,263.81 : x - Step 2: Convert to fraction form
135,406.96/186,882.69 = 77,263.81/x - Step 3: Cross multiply
135,406.96x = 186,882.69 × 77,263.81 - Step 4: Simplify right side
135,406.96x = 14,439,268,474.98 - Step 5: Solve for x
x = 14,439,268,474.98/135,406.96 - Step 6: Final answer
x = 106,636.09
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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.