Finding the Fourth Proportional to 135,837.93, 187,447.41 and 75,405.63
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Solution
The fourth proportional to 135,837.93, 187,447.41 and 75,405.63 is: 104,054.81
Step by Step Solution
- Step 1: Write the proportion equation
135,837.93 : 187,447.41 = 75,405.63 : x - Step 2: Convert to fraction form
135,837.93/187,447.41 = 75,405.63/x - Step 3: Cross multiply
135,837.93x = 187,447.41 × 75,405.63 - Step 4: Simplify right side
135,837.93x = 14,134,590,042.92 - Step 5: Solve for x
x = 14,134,590,042.92/135,837.93 - Step 6: Final answer
x = 104,054.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.