Finding the Fourth Proportional to 129,394.56, 193,780.80 and 73,822.08
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Solution
The fourth proportional to 129,394.56, 193,780.80 and 73,822.08 is: 110,555.67
Step by Step Solution
- Step 1: Write the proportion equation
129,394.56 : 193,780.80 = 73,822.08 : x - Step 2: Convert to fraction form
129,394.56/193,780.80 = 73,822.08/x - Step 3: Cross multiply
129,394.56x = 193,780.80 × 73,822.08 - Step 4: Simplify right side
129,394.56x = 14,305,301,720.06 - Step 5: Solve for x
x = 14,305,301,720.06/129,394.56 - Step 6: Final answer
x = 110,555.67
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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.