Finding the Fourth Proportional to 135,027.45, 186,341.64 and 74,601.99
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Solution
The fourth proportional to 135,027.45, 186,341.64 and 74,601.99 is: 102,952.82
Step by Step Solution
- Step 1: Write the proportion equation
135,027.45 : 186,341.64 = 74,601.99 : x - Step 2: Convert to fraction form
135,027.45/186,341.64 = 74,601.99/x - Step 3: Cross multiply
135,027.45x = 186,341.64 × 74,601.99 - Step 4: Simplify right side
135,027.45x = 13,901,457,163.86 - Step 5: Solve for x
x = 13,901,457,163.86/135,027.45 - Step 6: Final answer
x = 102,952.82
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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.