Finding the Fourth Proportional to 134,964.95, 186,251.94 and 74,534.49
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Solution
The fourth proportional to 134,964.95, 186,251.94 and 74,534.49 is: 102,857.77
Step by Step Solution
- Step 1: Write the proportion equation
134,964.95 : 186,251.94 = 74,534.49 : x - Step 2: Convert to fraction form
134,964.95/186,251.94 = 74,534.49/x - Step 3: Cross multiply
134,964.95x = 186,251.94 × 74,534.49 - Step 4: Simplify right side
134,964.95x = 13,882,193,359.41 - Step 5: Solve for x
x = 13,882,193,359.41/134,964.95 - Step 6: Final answer
x = 102,857.77
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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.