Finding the Fourth Proportional to 105,010.68, 157,487.94 and 71,725.08
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Solution
The fourth proportional to 105,010.68, 157,487.94 and 71,725.08 is: 107,568.44
Step by Step Solution
- Step 1: Write the proportion equation
105,010.68 : 157,487.94 = 71,725.08 : x - Step 2: Convert to fraction form
105,010.68/157,487.94 = 71,725.08/x - Step 3: Cross multiply
105,010.68x = 157,487.94 × 71,725.08 - Step 4: Simplify right side
105,010.68x = 11,295,835,095.54 - Step 5: Solve for x
x = 11,295,835,095.54/105,010.68 - Step 6: Final answer
x = 107,568.44
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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.