Finding the Fourth Proportional to 135,740.16, 187,546.80 and 107,278.08
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Solution
The fourth proportional to 135,740.16, 187,546.80 and 107,278.08 is: 148,221.87
Step by Step Solution
- Step 1: Write the proportion equation
135,740.16 : 187,546.80 = 107,278.08 : x - Step 2: Convert to fraction form
135,740.16/187,546.80 = 107,278.08/x - Step 3: Cross multiply
135,740.16x = 187,546.80 × 107,278.08 - Step 4: Simplify right side
135,740.16x = 20,119,660,614.14 - Step 5: Solve for x
x = 20,119,660,614.14/135,740.16 - Step 6: Final answer
x = 148,221.87
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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.