Finding the Fourth Proportional to 135,066.99, 186,406.88 and 77,708.81
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Solution
The fourth proportional to 135,066.99, 186,406.88 and 77,708.81 is: 107,246.47
Step by Step Solution
- Step 1: Write the proportion equation
135,066.99 : 186,406.88 = 77,708.81 : x - Step 2: Convert to fraction form
135,066.99/186,406.88 = 77,708.81/x - Step 3: Cross multiply
135,066.99x = 186,406.88 × 77,708.81 - Step 4: Simplify right side
135,066.99x = 14,485,457,480.90 - Step 5: Solve for x
x = 14,485,457,480.90/135,066.99 - Step 6: Final answer
x = 107,246.47
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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.