Finding the Fourth Proportional to 135,313.08, 186,732.41 and 74,887.89
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Solution
The fourth proportional to 135,313.08, 186,732.41 and 74,887.89 is: 103,345.48
Step by Step Solution
- Step 1: Write the proportion equation
135,313.08 : 186,732.41 = 74,887.89 : x - Step 2: Convert to fraction form
135,313.08/186,732.41 = 74,887.89/x - Step 3: Cross multiply
135,313.08x = 186,732.41 × 74,887.89 - Step 4: Simplify right side
135,313.08x = 13,983,995,805.08 - Step 5: Solve for x
x = 13,983,995,805.08/135,313.08 - Step 6: Final answer
x = 103,345.48
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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.