Finding the Fourth Proportional to 134,713.30, 185,905.68 and 74,286.34
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Solution
The fourth proportional to 134,713.30, 185,905.68 and 74,286.34 is: 102,515.88
Step by Step Solution
- Step 1: Write the proportion equation
134,713.30 : 185,905.68 = 74,286.34 : x - Step 2: Convert to fraction form
134,713.30/185,905.68 = 74,286.34/x - Step 3: Cross multiply
134,713.30x = 185,905.68 × 74,286.34 - Step 4: Simplify right side
134,713.30x = 13,810,252,552.41 - Step 5: Solve for x
x = 13,810,252,552.41/134,713.30 - Step 6: Final answer
x = 102,515.88
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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.