Finding the Fourth Proportional to 105,939.04, 158,908.56 and 39,377.68
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Solution
The fourth proportional to 105,939.04, 158,908.56 and 39,377.68 is: 59,066.52
Step by Step Solution
- Step 1: Write the proportion equation
105,939.04 : 158,908.56 = 39,377.68 : x - Step 2: Convert to fraction form
105,939.04/158,908.56 = 39,377.68/x - Step 3: Cross multiply
105,939.04x = 158,908.56 × 39,377.68 - Step 4: Simplify right side
105,939.04x = 6,257,450,424.94 - Step 5: Solve for x
x = 6,257,450,424.94/105,939.04 - Step 6: Final answer
x = 59,066.52
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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.