Finding the Fourth Proportional to 126,246.14, 189,368.99 and 73,618.72
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Solution
The fourth proportional to 126,246.14, 189,368.99 and 73,618.72 is: 110,427.94
Step by Step Solution
- Step 1: Write the proportion equation
126,246.14 : 189,368.99 = 73,618.72 : x - Step 2: Convert to fraction form
126,246.14/189,368.99 = 73,618.72/x - Step 3: Cross multiply
126,246.14x = 189,368.99 × 73,618.72 - Step 4: Simplify right side
126,246.14x = 13,941,101,809.98 - Step 5: Solve for x
x = 13,941,101,809.98/126,246.14 - Step 6: Final answer
x = 110,427.94
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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.