Finding the Fourth Proportional to 126,248.65, 189,372.73 and 73,621.23
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Solution
The fourth proportional to 126,248.65, 189,372.73 and 73,621.23 is: 110,431.70
Step by Step Solution
- Step 1: Write the proportion equation
126,248.65 : 189,372.73 = 73,621.23 : x - Step 2: Convert to fraction form
126,248.65/189,372.73 = 73,621.23/x - Step 3: Cross multiply
126,248.65x = 189,372.73 × 73,621.23 - Step 4: Simplify right side
126,248.65x = 13,941,853,311.06 - Step 5: Solve for x
x = 13,941,853,311.06/126,248.65 - Step 6: Final answer
x = 110,431.70
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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.