Finding the Fourth Proportional to 126,460.64, 189,634.80 and 67,283.84
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Solution
The fourth proportional to 126,460.64, 189,634.80 and 67,283.84 is: 100,895.88
Step by Step Solution
- Step 1: Write the proportion equation
126,460.64 : 189,634.80 = 67,283.84 : x - Step 2: Convert to fraction form
126,460.64/189,634.80 = 67,283.84/x - Step 3: Cross multiply
126,460.64x = 189,634.80 × 67,283.84 - Step 4: Simplify right side
126,460.64x = 12,759,357,541.63 - Step 5: Solve for x
x = 12,759,357,541.63/126,460.64 - Step 6: Final answer
x = 100,895.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.