Finding the Fourth Proportional to 135,247.49, 186,607.97 and 87,443.31
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Solution
The fourth proportional to 135,247.49, 186,607.97 and 87,443.31 is: 120,650.07
Step by Step Solution
- Step 1: Write the proportion equation
135,247.49 : 186,607.97 = 87,443.31 : x - Step 2: Convert to fraction form
135,247.49/186,607.97 = 87,443.31/x - Step 3: Cross multiply
135,247.49x = 186,607.97 × 87,443.31 - Step 4: Simplify right side
135,247.49x = 16,317,619,159.66 - Step 5: Solve for x
x = 16,317,619,159.66/135,247.49 - Step 6: Final answer
x = 120,650.07
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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.